The Bosch SHXM78W55N 800 Series dishwasher is a premium 24-inch built-in dishwasher from an older generation of Bosch’s 800 Series lineup. It combines a stainless-steel tub, flexible third rack, RackMatic upper-rack adjustment, PrecisionWash cleaning technology, 42 dBA operation, 16-place-setting capacity, AquaStop leak protection, touch controls and a range of wash options. Bosch’s official U.S. product page now identifies the SHXM78W55N as no longer available, but Bosch continues to provide model-specific manuals, installation documentation, specifications and replacement-part support for multiple production variants.
This is important when reviewing the SHXM78W55N in 2026. It should not automatically be treated as equivalent to a current Bosch 800 Series dishwasher. Appliance generations change, and features such as connectivity, efficiency specifications, drying technology and controls can vary between models carrying the same series name. The exact SHXM78W55N specification is therefore the foundation of this review.
The model is particularly interesting because it combines several technologies that were considered premium when it was introduced: a flexible third rack, EasyGlide rack system, RackMatic adjustment, PrecisionWash, a five-level wash system, 42 dBA sound rating and 16-place capacity. Bosch also lists 24/7 AquaStop leak protection and an Extra Dry option.
For someone researching an existing SHXM78W55N, buying one as used or old stock, or comparing it with other older Bosch models, the important questions are whether it cleans effectively, how well it dries, how quiet it is, how practical its rack system remains, how much water and electricity it uses, how difficult it is to maintain, and whether its older specifications still make sense today.
Bosch SHXM78W55N at a Glance
| Feature | Bosch SHXM78W55N |
|---|---|
| Series | Bosch 800 Series |
| Model | SHXM78W55N |
| Type | 24-inch built-in dishwasher |
| Finish | Stainless steel |
| Handle | Bar handle |
| Capacity | 16 place settings |
| Wash cycles | 6 |
| Options | 5 |
| Noise level | 42 dBA |
| Third rack | Flexible 3rd Rack |
| Upper rack | RackMatic |
| Rack system | EasyGlide |
| Tub | Stainless steel |
| Wash system | Five-level wash |
| Cleaning technology | PrecisionWash |
| Heating element | Concealed |
| Leak protection | 24/7 AquaStop |
| Water softener | No |
| ChildLock | No |
| InfoLight | Yes |
| Extra Dry | Yes |
| Delay Start | 24 hours |
| Water consumption | 2.9 gallons/cycle |
| Annual energy consumption | 269 kWh |
| Historical ENERGY STAR status | Yes in original specification |
| Place settings | 16 |
| Voltage | 120 V |
| Frequency | 60 Hz |
| Rated power | 1,440 W |
| Rated current | 12 A |
| Overall dimensions | 33 7/8 × 23 9/16 × 23 3/4 inches |
| Required cutout | 33 7/8 × 23 5/8 × 24 inches |
| Net weight | 92 lb |
| Current U.S. availability | No longer available |
The specifications above come from Bosch’s documentation for the exact SHXM78W55N rather than from a generic 800 Series specification.
What Is the Bosch SHXM78W55N?
The SHXM78W55N is a 24-inch stainless-steel Bosch 800 Series dishwasher with a traditional front bar handle. Bosch designed this model as a premium built-in dishwasher with an emphasis on quiet operation, flexible loading and automated washing.
The model belongs to a family of related Bosch 800 Series dishwashers. Bosch documentation identifies other closely related versions using different model numbers and exterior configurations, including white and black versions of the SHXM78W55N family. This is useful when researching parts because visually similar Bosch dishwashers can have different model numbers and different internal configurations.
The SHXM78W55N is also an older model. Bosch’s current U.S. product page states that the product is no longer available. However, Bosch continues to maintain support pages for several model suffixes, including /01, /10, /11, /16 and /20, with manuals and product documentation.
That makes the model different from a dishwasher that has completely disappeared from manufacturer documentation. Owners still have access to model-specific information, which can be valuable when diagnosing problems or ordering parts.
Design and Exterior
The SHXM78W55N uses a stainless-steel exterior with a bar handle. The front controls are designed to keep the dishwasher’s exterior relatively clean-looking, while the controls can be accessed when the door is opened. Bosch identifies the controls as touch controls.
The bar-handle configuration is a practical alternative to the pocket-handle design found on some Bosch models. A bar handle provides a more conventional grip and can be particularly convenient for users who prefer a prominent handle when opening a full dishwasher door.
The overall design is deliberately understated rather than decorative. The stainless-steel exterior allows the dishwasher to fit into many modern kitchen designs, while the hidden control arrangement keeps the front relatively uncluttered.
The model’s overall dimensions are approximately 33 7/8 inches high, 23 9/16 inches wide and 23 3/4 inches deep. Bosch specifies a required cutout of 33 7/8 × 23 5/8 × 24 inches, although the manufacturer’s installation instructions should always be used for final installation measurements.
16-Place-Setting Capacity
One of the strongest practical features of the SHXM78W55N is its 16-place-setting capacity. Bosch’s specification identifies the machine as capable of holding 16 place settings, making it suitable for households that regularly generate substantial dishwasher loads.
Capacity is not determined solely by the number of place settings. The way the racks are arranged has a major influence on how much cookware can be loaded. Bosch therefore combines the 16-place capacity with an adjustable upper rack, flexible third rack and adjustable tines.
For large families, this arrangement can reduce the number of separate dishwasher cycles required. It can also be useful for households that entertain frequently or cook large meals.
However, a 16-place-setting rating should not be interpreted as meaning that every large pot, pan and serving dish will fit simultaneously. Oversized cookware can occupy the vertical and horizontal space normally used for several smaller dishes. The SHXM78W55N’s adjustable rack system is therefore just as important as its stated capacity.
Flexible Third Rack
The Flexible 3rd Rack is one of the most important features of the SHXM78W55N. Bosch describes it as having folding tines and states that it adds approximately 30% more loading area compared with a Bosch dishwasher using two racks.
A third rack changes the way utensils are loaded. Instead of placing large cooking utensils and serving implements in a traditional silverware basket, users can place many of them horizontally in the uppermost rack.
The flexible design is particularly useful because it is not simply a flat tray. Bosch describes folding sections that allow deeper items to be accommodated. This makes the third rack more versatile for households that wash a mixture of forks, knives, cooking utensils and other small dishwasher-safe objects.
There is a practical advantage to moving utensils upward: it frees space in the lower rack for plates, bowls, pots and pans. The third rack can therefore increase usable capacity without physically making the dishwasher larger.
RackMatic Adjustable Upper Rack
Bosch’s RackMatic system gives the SHXM78W55N three upper-rack height levels and nine possible rack positions.
This is an important feature because dishwashers are frequently asked to clean objects of dramatically different sizes. One load might contain tall wine glasses, while another might contain a large stockpot or deep casserole dish.
The upper rack can be raised when additional clearance is needed below. Alternatively, it can be positioned differently when the user wants to maximize upper-rack space.
This flexibility is particularly useful in households that do not load the dishwasher the same way every day. A fixed rack layout can force users to work around the dishwasher’s geometry, whereas RackMatic allows the interior to be changed according to the load.
EasyGlide Rack System
The SHXM78W55N also uses EasyGlide racks. Bosch describes EasyGlide as providing smooth rack movement to make loading and unloading easier.
This may appear to be a small convenience feature, but rack movement becomes more noticeable when the rack is heavily loaded. A smooth-gliding rack can make it easier to pull the dishwasher open without disturbing the dishes.
The feature is especially helpful for the upper rack and third rack because users frequently access these racks when the dishwasher is partially loaded or when individual items need to be removed.
Five-Level Wash System
Bosch specifies a five-level wash system for the SHXM78W55N.
The purpose of multiple wash levels is to distribute water throughout different portions of the dishwasher rather than relying on a single spray location. Dishwasher cleaning depends heavily on water pressure, spray coverage, detergent concentration, temperature and the position of the dishes.
A multi-level system can be particularly beneficial in a three-rack dishwasher because additional rack space means dishes occupy more vertical positions. The water-delivery system therefore needs to provide effective coverage throughout the interior.
Proper loading remains essential. Even an advanced spray system cannot clean a surface that is completely blocked by another dish or pan.
PrecisionWash Cleaning Technology
The SHXM78W55N uses PrecisionWash, one of Bosch’s sensor-based cleaning technologies. Bosch describes the system as providing a smarter cleaning process and identifies PrecisionWash as one of the model’s major features.
Sensor-based washing is valuable because dishwasher loads are not identical. A load containing lightly soiled plates does not necessarily require the same treatment as one containing heavily soiled cookware.
ENERGY STAR explains that soil-sensing dishwashers can detect the condition of the wash water and adjust aspects of the normal cycle accordingly. This type of technology can help balance cleaning performance and resource consumption.
For the SHXM78W55N, PrecisionWash is therefore more than a marketing label. It reflects the model’s broader design philosophy of using sensors and controlled water delivery rather than relying solely on a fixed wash routine.
Cleaning Performance
The SHXM78W55N was positioned as a high-end dishwasher, and its combination of PrecisionWash, five-level washing, adjustable racks and multiple wash cycles gives it a strong foundation for cleaning mixed household loads. Bosch’s product documentation identifies six wash cycles and five options.
The dishwasher should perform best when heavily soiled cookware is loaded so that water can reach the affected surfaces. Large pots should not block the spray pattern, and dishes should not be stacked in a way that prevents water from reaching their interiors.
The dishwasher’s automatic cleaning technology can help compensate for variations in soil level, but it cannot overcome poor loading. This is true of virtually all modern dishwashers.
For everyday plates, bowls, glasses and utensils, the combination of sensor-based washing and multiple spray levels is designed to provide consistent cleaning without requiring the user to manually determine every wash parameter.
Six Wash Cycles
The exact Bosch specification identifies six wash cycles for the SHXM78W55N.
Having several cycle choices is useful because different loads have different cleaning requirements. Lightly soiled dishes may not need the same treatment as cookware with dried food residue.
The important point is not simply the number six. A dishwasher becomes more useful when the cycles provide meaningful differences in cleaning intensity, duration or temperature.
Bosch’s operating documentation for this dishwasher family provides the detailed operating instructions for the available programs and options. Because several production revisions exist, owners should use the manual corresponding to their exact model suffix when determining cycle behavior.
Noise Level: 42 dBA
Noise is one of the most attractive features of the SHXM78W55N. Bosch rates the SHXM78W55N at 42 dBA.
That is a quiet operating specification for a residential dishwasher and makes the model particularly appropriate for open-plan kitchens.
A quiet dishwasher is valuable when the kitchen is connected directly to a living room, dining room or family room. It is also useful when the dishwasher runs in the evening or overnight.
Bosch’s original marketing materials described 42 dBA using a historical comparison against 24-inch stainless-steel-tub dishwashers from major brands in the U.S. and Canada. That was based on a specific historical market sample and should not be interpreted as a current 2026 industry ranking.
The useful fact today is simply that the SHXM78W55N has a documented 42 dBA sound rating.
Is 42 dBA Actually Quiet?
Yes, 42 dBA represents a low operating-noise level for a residential dishwasher. However, perceived noise depends on installation and room acoustics.
A dishwasher installed in an open kitchen with hard flooring can sound different from the same machine installed in a closed kitchen with more sound-absorbing materials.
The type of noise also matters. A dishwasher can produce occasional sounds from water movement, draining, pumps and rack vibration even when its average sound rating is low.
The 42 dBA rating therefore should be viewed as a strong objective specification rather than a guarantee that the dishwasher will be completely silent.
Stainless-Steel Tub
The SHXM78W55N has a stainless-steel tub.
A stainless-steel interior is well suited to the hot, wet environment inside a dishwasher. It also contributes to the premium construction of the appliance.
The stainless tub should not be confused with a guarantee of lifetime durability. Filters, seals, spray arms, pumps, heating components and electronics can still require maintenance or replacement.
The benefit of the stainless tub is that it provides a durable interior environment while supporting the dishwasher’s heating and drying processes.
Concealed Heating Element
Bosch specifies a concealed heating element for the SHXM78W55N.
A concealed heating element is located away from direct exposure to dishes. This can be useful when loading plastic containers or other lightweight dishwasher-safe objects.
The concealed design also helps preserve usable interior space because users do not have to work around an exposed heating element sitting below the lower rack.
Heating is essential for both cleaning and drying because dishwasher performance depends heavily on water temperature and the removal of moisture after washing.
Drying Performance
The SHXM78W55N’s exact specification identifies an Extra Dry option, but the specification sheet should not be confused with newer Bosch 800 Series models that advertise later-generation drying technologies.
This distinction is important when researching used Bosch dishwashers. Bosch has used different drying technologies across different 800 Series generations, and the presence of an 800 Series badge does not automatically mean that every model has the same drying system.
The SHXM78W55N should therefore be evaluated according to its documented drying functions rather than features from newer models.
The Extra Dry option provides users with additional control when normal drying is insufficient. This can be useful for mixed loads containing materials that retain moisture.
Drying Plastics
Plastic items are often among the most difficult dishwasher items to dry because they can retain water droplets after the washing cycle.
The SHXM78W55N’s drying performance can be improved through appropriate loading, correct detergent and rinse-aid use, and selection of the appropriate drying option.
Users should not expect every plastic container to emerge completely dry after every cycle. Shape, material, position and residual water all affect drying.
This is one area where newer generations may offer additional drying technologies, so buyers comparing this model with a current 800 Series dishwasher should check the exact specifications rather than assuming all models dry identically.
Extra Dry Option
Bosch specifically lists Extra Dry as a special feature of the SHXM78W55N.
The option is useful when the normal cycle does not produce the desired level of dryness. It can be especially helpful for mixed loads containing plastic, deep cups and other items where water can remain trapped.
However, selecting an additional drying option can affect cycle characteristics and energy use. Users should choose it when necessary rather than automatically applying it to every load.
AquaStop Leak Protection
The SHXM78W55N includes 24/7 AquaStop leak protection.
Water leaks are among the most important risks associated with built-in dishwashers because water can damage flooring, cabinetry and adjacent structures.
The leak-protection system is designed to provide an additional layer of protection if the appliance detects a leak condition. This is an important safety feature for a dishwasher installed inside kitchen cabinetry.
AquaStop does not eliminate every possible source of household water damage. Correct installation, properly connected plumbing and routine inspection remain essential.
Does the SHXM78W55N Have a Water Softener?
No. Bosch’s specification explicitly lists water softener: No.
This matters in hard-water regions. Mineral deposits can accumulate on glassware and dishwasher components when water contains high levels of calcium and magnesium.
Hard-water households may therefore need to pay greater attention to detergent selection, rinse aid and periodic cleaning.
Because water hardness varies significantly between regions, the appropriate maintenance approach should be based on the local water supply rather than assuming that every household needs the same treatment.
Hard Water Considerations
Hard water can produce cloudy glassware, mineral deposits and buildup inside a dishwasher.
The absence of an integrated softener means the SHXM78W55N does not actively reduce incoming water hardness. Users therefore need to manage the consequences through appropriate cleaning and detergent practices.
Overusing detergent is not necessarily the answer. Too much detergent can itself contribute to residue under certain conditions. Following the detergent manufacturer’s instructions and the appliance manual is a better approach.
Rinse aid can also be important because it helps water drain from dish surfaces, potentially reducing spotting and improving drying.
Water Consumption
The Bosch specification lists water consumption at 2.9 gallons per cycle and annual water consumption at approximately 623.5 gallons under the standardized calculation used for the product documentation.
The 2.9-gallon figure is particularly notable because it is below the current ENERGY STAR maximum of 3.2 gallons per cycle for standard-size dishwashers. Current ENERGY STAR criteria became effective July 19, 2023.
However, the annual energy figure requires more context. Bosch’s original specification identifies the SHXM78W55N as ENERGY STAR qualified and gives an annual energy figure of 269 kWh. Current ENERGY STAR qualification requires no more than 240 kWh/year for standard-size dishwashers.
This illustrates why historical ENERGY STAR information should not automatically be interpreted as current certification. Standards change over time.
Energy Consumption
Bosch lists 269 kWh of annual energy consumption for the SHXM78W55N.
This number is based on standardized testing assumptions rather than an individual household’s exact electricity use. Actual energy consumption varies according to cycle selection, usage frequency, incoming water temperature and household practices.
Current ENERGY STAR guidance explains that dishwasher energy consumption includes the electricity used by the machine, including the energy associated with heating water and drying dishes.
For anyone comparing an older SHXM78W55N with a modern dishwasher, the 269 kWh figure should therefore be compared against current product specifications rather than viewed in isolation.
Historical ENERGY STAR Status
This model requires special attention because Bosch’s original specification sheet clearly identifies the SHXM78W55N as ENERGY STAR qualified.
Current ENERGY STAR criteria, however, are different. The present standard-size dishwasher requirements are no more than 240 kWh/year and 3.2 gallons/cycle.
The SHXM78W55N’s published 269 kWh/year therefore exceeds today’s annual-energy threshold even though its 2.9-gallon-per-cycle water figure is below the current water limit.
The correct way to describe this model is that it was ENERGY STAR qualified under the applicable historical requirements when it was marketed, rather than claiming that it meets today’s certification criteria.
Touch Controls
The SHXM78W55N uses touch control technology. Bosch designed the controls for quick cycle programming.
Touch controls give the dishwasher a clean appearance and allow the user to select programs without traditional mechanical switches.
As with any electronic control interface, users should keep the control area clean and avoid excessive moisture or cleaning chemicals that are not intended for appliance surfaces.
24-Hour Delay Start
The SHXM78W55N includes a 24-hour Delay Start function. Bosch’s product page identifies the feature as a way to schedule the dishwasher for a later start.
This can be useful for households that want to run the dishwasher after bedtime or at another convenient time.
It can also be useful when the dishwasher is loaded during the day but the household does not want the cycle to begin immediately.
InfoLight
Bosch includes InfoLight on the SHXM78W55N. The system projects a light onto the floor to indicate that the dishwasher is operating.
This is particularly helpful on a quiet 42 dBA dishwasher. Because the appliance may be difficult to hear from another room, the floor projection gives the user a visual indication that a cycle is in progress.
It is a small feature, but it improves everyday usability.
ChildLock
One limitation is that Bosch’s specification lists ChildLock as unavailable on this model.
This does not mean that the dishwasher lacks general safety mechanisms. AquaStop provides leak protection, and normal appliance safety procedures still apply.
However, families specifically looking for a dedicated control-locking function should take this specification into account.
Electrical Requirements
The SHXM78W55N is designed for a 120-volt, 60 Hz electrical supply and has a rated current of 12 amps and power rating of 1,440 watts.
This is a North American appliance specification.
Installation should follow the manufacturer’s instructions and applicable local electrical codes. Bosch documentation also provides installation instructions for the various model suffixes.
The exact electrical configuration should be confirmed from the model’s installation documentation before installation or replacement.
USA Compatibility
The SHXM78W55N was designed for the North American market and its 120 V/60 Hz specification is appropriate for the electrical environment used in the United States.
However, Bosch’s current U.S. product page identifies the model as no longer available. That means consumers are more likely to encounter existing units, old stock or used appliances rather than a normal current-model retail purchase.
For U.S. buyers considering an existing machine, the complete model suffix should be checked because Bosch maintains separate support records for multiple versions.
Canada Compatibility
The same North American electrical specification makes the model relevant to Canadian installations. Bosch Canada continues to maintain product and support information for the SHXM78W55N, although current availability can vary.
Canadian buyers should verify local service arrangements, parts availability and warranty status before purchasing an older unit.
The 42 dBA rating is also particularly relevant because Bosch’s original comparison methodology for the model considered major U.S. and Canadian brands.
UK Compatibility
The UK requires special consideration.
The SHXM78W55N’s exact specification is 120 V and 60 Hz, making it a North American electrical model.
Consequently, the exact North American SHXM78W55N should not simply be treated as a standard UK dishwasher that can be installed using an ordinary plug adapter.
UK readers can still use the SHXM78W55N as a technology comparison when researching dishwasher features such as third-rack loading, noise level, adjustable racks and sensor-based washing. For an actual UK installation, a dishwasher specified for the local electrical and installation environment is the appropriate approach.
Installation Dimensions
The SHXM78W55N has overall dimensions of:
- Height: 33 7/8 inches
- Width: 23 9/16 inches
- Depth: 23 3/4 inches
Bosch lists the required cutout at:
- Height: 33 7/8 inches
- Width: 23 5/8 inches
- Depth: 24 inches
The dishwasher also has adjustable feet.
These dimensions are close to what many homeowners consider a standard 24-inch dishwasher opening, but measurements should never be assumed. Existing cabinetry, flooring thickness and countertop height can change the available space.
Bosch specifically advises consulting installation instructions for final dimensional information before creating or modifying a cutout.
Water Pressure
Bosch specifies a minimum water pressure of 14 psi for the SHXM78W55N.
Adequate water pressure is important because the dishwasher depends on water entering the machine at the appropriate rate.
Low pressure can create filling problems and may affect cleaning performance.
The dishwasher should therefore be connected according to the manufacturer’s plumbing instructions, with the water supply and shutoff arrangement appropriate for the installation.
Drain Hose
The Bosch specification lists a 79-inch outlet hose for the SHXM78W55N and identifies an optional drain-hose extension accessory.
Drain routing is important because the dishwasher needs to remove wastewater effectively after each cycle.
The installation instructions should be followed for drain-hose routing, connection and high-loop requirements. Improper drainage installation can produce symptoms that may initially look like a dishwasher malfunction even when the underlying issue is plumbing.
Maintenance
Maintaining the SHXM78W55N involves more than simply adding detergent and starting a cycle.
The filter system should be inspected and cleaned as required, spray arms should be checked for blockage, the door seal should be kept clean, and the interior should be inspected periodically for mineral deposits or food residue.
A dishwasher that is mechanically sound can still develop poor cleaning performance when the filter becomes clogged or spray openings become obstructed.
Bosch continues to provide model-specific manuals and support material for SHXM78W55N variants, making the appropriate owner’s documentation the best reference for maintenance procedures.
Cleaning the Filter
The filter is an important part of the dishwasher’s water-circulation system. Food particles captured during washing should not be allowed to accumulate indefinitely.
Users should follow the exact removal and cleaning instructions for their model suffix.
A clogged or heavily soiled filter can contribute to reduced cleaning performance, unpleasant odors and poor water circulation.
Regular inspection is particularly important for households that frequently wash heavily soiled cookware.
Spray Arm Maintenance
Spray arms need unobstructed water passages to distribute water effectively.
Mineral deposits and food particles can restrict spray openings. When that happens, some parts of the dishwasher may receive less effective water coverage.
Periodic inspection of the spray arms is therefore worthwhile, especially in hard-water locations.
If the spray arms are removable according to the manual, they can be cleaned using the manufacturer’s recommended procedure.
Detergent and Rinse Aid
Correct detergent use is important for both cleaning and long-term dishwasher performance.
More detergent is not automatically better. The appropriate amount depends on detergent formulation, water hardness, soil level and the wash program.
Rinse aid can also improve drying and reduce water spots, particularly on glassware.
Because the SHXM78W55N does not contain an integrated water softener, households with hard water should pay particular attention to the interaction between local water conditions, detergent and rinse aid.
Bosch SHXM78W55N Reliability
Reliability is more difficult to evaluate than specifications because a dishwasher’s long-term performance depends on many factors.
The SHXM78W55N contains pumps, valves, sensors, heating components, electronic controls, racks, seals and other mechanical parts. Any of these components can eventually require service.
One positive factor for an older model is continued manufacturer documentation. Bosch maintains support pages for several SHXM78W55N production variants and provides manuals and parts information.
That does not guarantee that every component will remain available indefinitely, but it makes maintenance more practical than with an appliance for which documentation has disappeared.
Common Problems to Watch For
Potential problems with an older dishwasher can include:
- Failure to drain
- Poor filling
- Weak spray pressure
- Clogged filters
- Blocked spray arms
- Heating problems
- Drying problems
- Door-seal deterioration
- Rack-wheel wear
- Pump noise
- Water inlet problems
- Electronic-control faults
- Leak-related issues
These should be regarded as general categories to inspect on an older dishwasher, not as claims that every SHXM78W55N develops these problems.
When purchasing a used unit, it is much more useful to test the dishwasher through a complete cycle than to rely solely on its model reputation.
What to Check Before Buying a Used SHXM78W55N
A used SHXM78W55N should ideally be inspected for both cosmetic and functional condition.
Check whether the door opens and closes smoothly. Examine the racks for damaged wheels, broken tines and corrosion. Check that the third rack moves correctly.
During operation, listen for unusual pump or motor noises. Verify that the dishwasher fills, sprays, heats, drains and dries correctly.
Look underneath and around the appliance for signs of previous water leakage.
Finally, photograph or record the complete model and serial information. Bosch maintains several SHXM78W55N variants, so the full identifier is important for finding the correct manual and parts.
Current Availability
The SHXM78W55N is not a current U.S. retail model. Bosch’s U.S. product page explicitly states that the product is no longer available.
That changes the purchasing equation.
A consumer looking for a brand-new dishwasher should not assume that the SHXM78W55N is part of the current 800 Series lineup simply because search results or older listings still display it.
A consumer who already owns the dishwasher, however, can still benefit from Bosch’s continuing support documentation.
Bosch SHXM78W55N and Newer 800 Series Models
The term “800 Series” can create confusion because Bosch has used the designation across multiple generations.
Newer 800 Series models can contain features that are not documented for the SHXM78W55N. Therefore, buyers should never assume that an older 800 Series dishwasher has every feature found on a 2026 800 Series dishwasher.
The SHXM78W55N’s documented feature set includes PrecisionWash, RackMatic, Flexible 3rd Rack, EasyGlide, 42 dBA operation, AquaStop, InfoLight and Extra Dry.
This is already a substantial package, but it belongs to its own generation.
Does the SHXM78W55N Have Home Connect?
The exact model documentation available for the SHXM78W55N does not establish Home Connect functionality as a feature.
The current product page provides a general Home Connect link among its broader support links, but that should not be interpreted as proof that this particular older model has Wi-Fi or smartphone connectivity.
This distinction is important because newer Bosch dishwashers can have connected functions.
If connectivity is important, the exact model number should be verified against the manufacturer’s documentation before purchase.
Does the SHXM78W55N Have CrystalDry?
The official specification sheet reviewed for the SHXM78W55N lists an Extra Dry option, but it does not identify CrystalDry as a feature of this exact model.
Therefore, it would be incorrect to transfer CrystalDry specifications from another Bosch 800 Series model to the SHXM78W55N.
This is an important distinction because Bosch’s product generations contain several different drying systems.
For the SHXM78W55N, the safest description is that it has an Extra Dry option and a concealed heating element, with its drying behavior determined by its documented cycle and drying system.
Does the SHXM78W55N Have a Sanitize Option?
The exact specification sheet reviewed for this model lists five options but does not identify Sanitize in its main specification table.
Therefore, Sanitize should not be automatically attributed to the SHXM78W55N based on features from another Bosch dishwasher.
Owners should consult the manual for their exact model suffix if they need to determine whether a particular sanitation program or option is available.
SHXM78W55N for Families
The 16-place-setting capacity makes this dishwasher particularly practical for families that generate substantial quantities of dishes.
The third rack can accommodate utensils and smaller items, while RackMatic allows the upper rack to be repositioned according to the load.
A quiet 42 dBA rating is another benefit for family kitchens because the dishwasher can operate without becoming a major source of background noise.
SHXM78W55N for Entertaining
People who frequently entertain guests can benefit from the dishwasher’s capacity and flexible loading system.
A large dinner can produce many plates, glasses, serving utensils and cookware pieces. The third rack can take care of smaller utensils, while the lower rack can be configured for larger cookware.
The 24-hour delay function also allows the user to load the dishwasher after an event and schedule operation for a later time.
SHXM78W55N for Apartment Kitchens
The dishwasher’s 24-inch standard configuration makes it suitable for kitchens designed around a conventional full-size dishwasher opening.
Its quiet 42 dBA rating can be especially useful in apartments where the kitchen may be close to bedrooms or living areas.
However, apartment residents should verify cabinet dimensions, electrical requirements, water connections and building-specific installation rules before replacement.
SHXM78W55N for Open-Plan Homes
Open-plan homes are one of the environments where the model’s 42 dBA rating becomes particularly valuable.
The kitchen may share the same space as the living and dining areas, making dishwasher noise more noticeable.
A low sound rating does not eliminate all operational sounds, but the SHXM78W55N’s specification places it firmly among quiet dishwasher designs.
Advantages of the Bosch SHXM78W55N
1. Quiet 42 dBA Operation
The 42 dBA rating is one of the model’s strongest characteristics.
2. Large 16-Place Capacity
The machine can accommodate substantial household loads.
3. Flexible Third Rack
The third rack increases usable loading space and provides a dedicated location for utensils and smaller items.
4. RackMatic Adjustment
Three height levels and nine rack positions provide significant loading flexibility.
5. PrecisionWash
Sensor-based cleaning technology is designed to adjust the cleaning process according to load conditions.
6. Stainless-Steel Tub
The stainless interior is appropriate for a premium dishwasher design.
7. AquaStop
24/7 AquaStop provides an additional layer of leak protection.
8. EasyGlide Racks
The rack system is designed to make loading and unloading smoother.
9. Low Published Water Consumption
The documented 2.9 gallons per cycle remains below the current ENERGY STAR water-use threshold.
10. Continued Manufacturer Documentation
Bosch continues to provide model-specific support material for multiple production variants.
Limitations of the Bosch SHXM78W55N
1. It Is Discontinued in the United States
The current U.S. product page identifies the model as no longer available.
2. It Is an Older Generation
Newer Bosch models can contain technologies that this model does not have.
3. No Integrated Water Softener
This can be important in hard-water regions.
4. No Documented ChildLock
Bosch lists ChildLock as unavailable.
5. Historical Rather Than Current ENERGY STAR Qualification
The original Bosch specification identifies the model as ENERGY STAR qualified, but current criteria are stricter than the historical requirements.
6. North American Electrical Design
The 120 V/60 Hz specification makes the exact appliance unsuitable as a straightforward UK installation.
Bosch SHXM78W55N Review: Is It Still Worth Considering?
The answer depends heavily on whether the dishwasher is being considered as an existing appliance, a used machine or a current retail purchase.
For an existing owner, the SHXM78W55N remains a capable dishwasher. Its quiet operation, adjustable racks, third rack, stainless-steel tub, PrecisionWash and AquaStop system give it a feature package that remains useful.
For someone considering a used unit, condition becomes more important than the original series designation. A well-maintained machine with a healthy pump, heating system, racks, seals and controls can be much more attractive than a neglected unit simply because it carries the 800 Series name.
For someone shopping for a brand-new dishwasher, the fact that Bosch has discontinued the model means newer alternatives should be considered alongside it.
Final Verdict
The Bosch SHXM78W55N 800 Series dishwasher is a well-equipped older-generation premium dishwasher with several features that remain highly useful today.
Its most notable strengths are its 42 dBA operating noise, 16-place-setting capacity, Flexible 3rd Rack, RackMatic adjustable upper rack, EasyGlide rack system, PrecisionWash cleaning technology, stainless-steel tub and AquaStop leak protection.
The 42 dBA rating makes it particularly attractive for open-plan kitchens, while the flexible rack architecture makes it practical for households that regularly wash a mixture of plates, glasses, utensils, pots and pans.
Its water consumption is also noteworthy. At 2.9 gallons per cycle, the published figure remains below the current ENERGY STAR maximum of 3.2 gallons per cycle for standard dishwashers. However, its 269 kWh annual energy figure is above the current 240 kWh/year ENERGY STAR threshold. The original Bosch specification identified the model as ENERGY STAR qualified under the historical criteria applicable at the time.
The model’s age is the major consideration. Bosch now identifies the SHXM78W55N as no longer available in the United States, although model-specific support and documentation remain available for multiple production variants.
The SHXM78W55N should therefore be viewed as a previous-generation Bosch 800 Series dishwasher rather than a current 2026 model. Buyers should not automatically transfer features such as newer connectivity or newer drying technologies from current Bosch 800 Series models to this dishwasher.
For U.S. and Canadian owners, the 120 V/60 Hz electrical specification makes the appliance a North American design. For UK readers, the model is better treated as a technology reference because the exact appliance is not a normal UK electrical configuration.
Overall, the SHXM78W55N remains an interesting Bosch dishwasher because its core design priorities—quiet operation, flexible loading, sensor-based cleaning, large capacity and leak protection—are still highly relevant. Its discontinued status, historical energy certification and older-generation technology simply mean that it should be evaluated based on its exact specifications and condition rather than its 800 Series name alone.
Frequently Asked Questions About Bosch SHXM78W55N
1. Is the Bosch SHXM78W55N an 800 Series dishwasher?
Yes. Bosch identifies the SHXM78W55N as an 800 Series dishwasher.
2. Is the SHXM78W55N still available?
Bosch’s current U.S. product page says the SHXM78W55N is no longer available.
3. How quiet is the SHXM78W55N?
It is rated at 42 dBA.
4. Does the SHXM78W55N have a third rack?
Yes. It has a Flexible 3rd Rack with folding tines.
5. How many place settings does it hold?
The dishwasher is rated for 16 place settings.
6. Does it have RackMatic?
Yes. RackMatic provides three height levels and nine possible rack positions.
7. Does it have EasyGlide racks?
Yes. Bosch specifies EasyGlide rack technology for smoother loading and unloading.
8. Does it have PrecisionWash?
Yes. PrecisionWash is one of the model’s documented cleaning technologies.
9. How many wash cycles does it have?
It has six wash cycles.
10. How many options does it have?
The Bosch specification lists five options.
11. Does it have AquaStop?
Yes. Bosch specifies 24/7 AquaStop leak protection.
12. Does it have a stainless-steel tub?
Yes.
13. Does it have a concealed heating element?
Yes.
14. Does it have a water softener?
No. Bosch lists the water-softener feature as unavailable.
15. Does it have ChildLock?
No. Bosch lists ChildLock as unavailable.
16. Does it have InfoLight?
Yes. InfoLight is listed among the model’s special features.
17. Does it have Extra Dry?
Yes. Bosch lists an Extra Dry option.
18. Does it have a delay-start function?
Yes. Bosch identifies a 24-hour Delay Start function.
19. Does it have Home Connect?
The exact model documentation does not establish Home Connect as a feature. It should not be assumed to have Wi-Fi simply because newer Bosch models have connected functionality.
20. Does it have CrystalDry?
The exact SHXM78W55N specification reviewed here does not list CrystalDry. It lists Extra Dry instead.
21. Does it have a Sanitize option?
The main Bosch specification reviewed for this exact model does not list Sanitize among its five options. Owners should check the manual for their exact model suffix before assuming that function is available.
22. How much water does it use?
The published figure is 2.9 gallons per cycle, with approximately 623.5 gallons listed annually under the standardized calculation.
23. How much electricity does it use?
Bosch lists approximately 269 kWh per year.
24. Was it ENERGY STAR qualified?
Yes, the original Bosch specification identifies it as ENERGY STAR qualified.
25. Does it meet current ENERGY STAR requirements?
Its published 269 kWh/year figure is above the current 240 kWh/year maximum for standard-size ENERGY STAR dishwashers. Its 2.9-gallon water figure is below the current 3.2-gallon limit.
26. What voltage does it use?
It uses 120 volts.
27. What frequency does it use?
It is specified for 60 Hz.
28. How many amps does it use?
Bosch specifies 12 amps.
29. What are its dimensions?
Approximately 33 7/8 × 23 9/16 × 23 3/4 inches.
30. What cabinet opening does it require?
Bosch specifies approximately 33 7/8 × 23 5/8 × 24 inches for the cutout.
31. How much does it weigh?
The listed net weight is approximately 92 pounds.
32. Is it suitable for large families?
Its 16-place capacity and flexible three-rack design make it suitable for substantial household loads.
33. Is it good for pots and pans?
The adjustable racks and flexible loading system are designed to accommodate larger cookware, although correct loading remains important for cleaning performance.
34. Is it suitable for hard water?
It can be used in hard-water areas, but because it lacks an integrated water softener, users should pay attention to detergent, rinse aid and mineral buildup.
35. Is it good for open-plan kitchens?
The 42 dBA rating makes it particularly appropriate for kitchens where low operating noise is important.
36. Is the SHXM78W55N suitable for Canada?
It is a North American 120 V/60 Hz model, and Canadian product and support information exists for the model.
37. Is the SHXM78W55N suitable for the UK?
The exact model is a 120 V/60 Hz North American appliance, so it should not be treated as a normal UK installation.
38. Does it have a stainless-steel exterior?
Yes, the SHXM78W55N is the stainless-steel version.
39. Does it have a bar handle?
Yes. The model is identified as a 24-inch bar-handle dishwasher.
40. Does it have touch controls?
Yes.
41. Does it have a flexible third rack?
Yes. Bosch identifies the third rack as a Flexible 3rd Rack.
42. Can the third rack increase usable space?
Bosch states that the flexible third rack adds approximately 30% more loading area compared with a two-rack Bosch dishwasher.
43. Does it have adjustable feet?
Yes.
44. What is the minimum water pressure?
Bosch specifies 14 psi minimum water pressure.
45. How long is the drain hose?
The specification lists a 79-inch outlet hose.
46. Does Bosch still provide manuals?
Yes. Bosch’s support pages continue to provide manuals and installation documentation for multiple SHXM78W55N variants.
47. Can replacement parts still be found?
Bosch continues to provide model-specific replacement-part support for SHXM78W55N variants, although availability of individual parts can change over time.
48. Is the SHXM78W55N a current 2026 model?
No. Bosch’s U.S. product page identifies it as no longer available.
49. Is it still worth maintaining?
An existing SHXM78W55N can remain useful because its core features are substantial and manufacturer documentation remains available.
50. What should I check before buying one used?
Check the complete model suffix, installation compatibility, rack condition, door seal, pumps, drainage, water filling, heating, drying, controls, noise level and evidence of leakage.
51. Is 42 dBA quiet enough for nighttime operation?
The 42 dBA rating is designed for quiet residential operation, although actual perceived sound depends on installation and room acoustics.
52. Does it have leak protection?
Yes, through the documented 24/7 AquaStop system.
53. Can AquaStop eliminate every possible leak?
No. It is an appliance protection system, not a guarantee against every plumbing or installation-related water problem.
54. Does the dishwasher have an automatic soil sensor?
PrecisionWash is a sensor-based cleaning technology, and Bosch identifies the model as using this automated cleaning approach.
55. Is the SHXM78W55N good for everyday dishes?
Its combination of sensor-based washing, multiple wash cycles, flexible racks and large capacity makes it designed for everyday mixed household loads.
56. Is it good for heavily soiled cookware?
It has the rack flexibility and cleaning system appropriate for heavily soiled cookware, but proper loading and cycle selection remain essential.
57. Does it have a concealed heater?
Yes.
58. Does it have an exposed heating element?
No. Bosch specifies a concealed heating element.
59. Does it have a stainless tub?
Yes.
60. What is the biggest advantage of this dishwasher?
Its combination of quiet 42 dBA operation, large capacity, flexible racks and sensor-based cleaning is one of its strongest characteristics.
61. What is its biggest limitation?
Its discontinued status is the most significant limitation for anyone shopping for a dishwasher today.
62. Should I confuse it with newer 800 Series models?
No. The 800 Series designation spans multiple generations, and feature sets can differ substantially between models.
63. Does it have current-generation efficiency?
Its water figure remains competitive with today’s ENERGY STAR threshold, but its published annual energy figure is above today’s 240 kWh/year requirement.
64. Is it suitable for an open-concept home?
Its 42 dBA noise specification makes it particularly appropriate where dishwasher noise is a concern.
65. Is it suitable for apartments?
It can be appropriate where a standard 24-inch built-in dishwasher opening and compatible plumbing/electrical connections are available.
66. Is the third rack useful?
Yes. It provides additional space for utensils and smaller dishwasher-safe items and reduces competition for space in the lower racks.
67. Does RackMatic matter?
Yes. Three height levels and nine possible rack positions make the interior significantly more adaptable to different loads.
68. Is EasyGlide useful?
It is designed to make loading and unloading smoother, particularly when the racks are heavily loaded.
69. Is the SHXM78W55N a premium dishwasher?
It was positioned within Bosch’s 800 Series, with premium features including a flexible third rack, RackMatic, PrecisionWash, stainless tub, AquaStop and 42 dBA operation.
70. Should you buy a used SHXM78W55N?
A used unit can be considered when its physical and mechanical condition is good, the price reflects its age, the exact model suffix is confirmed, and appropriate parts and service support are available.
71. Does it have a built-in water softener?
No.
72. Does it have InfoLight?
Yes.
73. Does it have Delay Start?
Yes, with a 24-hour delay-start function.
74. Does it have five or six options?
The Bosch specification lists five options and six wash cycles.
75. What should an owner use to identify the correct replacement parts?
The complete model number and production suffix should be used because Bosch maintains separate documentation for multiple SHXM78W55N variants.
Conclusion
The Bosch SHXM78W55N is a strong example of an older premium 800 Series dishwasher whose fundamental design remains useful even though the model is no longer current.
Its 42 dBA operation, 16-place capacity, flexible third rack, RackMatic upper rack, EasyGlide system, PrecisionWash cleaning, stainless-steel tub and AquaStop leak protection give it a substantial feature package.
The model’s water consumption is also notable at 2.9 gallons per cycle. However, its 269 kWh annual energy figure needs to be interpreted against today’s stricter ENERGY STAR criteria rather than its historical certification.
Its lack of an integrated water softener, lack of documented Home Connect functionality and older-generation design are limitations that should be considered, particularly when comparing it with current Bosch products.
For an existing owner, the SHXM78W55N still has many qualities worth maintaining. For a used-unit buyer, condition and service history should be investigated carefully. For a new appliance buyer, newer models should be compared because Bosch no longer lists the SHXM78W55N as a current U.S. product.
The most accurate way to view the SHXM78W55N is therefore not simply as “an old Bosch dishwasher,” but as a previous-generation 800 Series model with a strong emphasis on quiet operation, flexible loading, automated cleaning and durable construction.
For U.S. and Canadian households, its North American electrical specification makes the model relevant to those markets. For UK readers, the appliance’s 120 V/60 Hz design means that its features are useful for comparison, but the exact North American machine should not be treated as a standard UK installation.