Bosch SHXM78W55N/10 dishwasher Parts

Yes. The Bosch SHXM78W55N dishwasher is a discontinued model, so you typically will not find it sold new through normal retail channels. You can still keep it running by using the correct replacement parts and the model’s documentation for service and installation details.

How to confirm what you have

Use these quick checks to make sure you are shopping for the right Bosch dishwasher parts:

• Match the model number on the rating label to SHXM78W55N
• Confirm the version (often shown as “/10”) if listed on the label
• Compare your control panel layout and handle style to the diagrams in the SHXM78W55N owner's manual
• Use the SHXM78W55N installation guide to verify connection and mounting requirements if you are reinstalling

What “discontinued” means for repairs

Discontinued does not mean unrepairable. It usually means:

• The unit is no longer in current production
• Some cosmetic items may become harder to source over time
• Core service parts (pumps, valves, controls) are often still available for years

Common repair parts customers replace

If your SHXM78W55N has draining or wash-performance issues, these parts are frequent suspects:

• Dishwasher drain pump 00631200 (won’t drain, water left in tub)
• Dishwasher water inlet valve 10023852 (won’t fill, fills slowly)
• Dishwasher circulation pump with heater 12008381 (poor cleaning, no heat, long cycles)

Quick troubleshooting before ordering parts

These steps help avoid buying the wrong part for a symptom:

• Reset power at the breaker for 5 minutes and retry a cycle
• Clean the filter area and check the sump for debris
• Verify the sink drain and garbage disposal inlet are clear
• Check for a high loop in the drain hose to prevent backflow

Symptom	Most common cause	Part to consider
Won’t drain	Blockage or failed drain pump	Dishwasher drain pump 00631200
Won’t fill	Water supply issue or inlet valve failure	Dishwasher water inlet valve 10023852
Not cleaning well	Circulation issue, heater problem, clogged filter	Dishwasher circulation pump with heater 12008381

Why it matters

Knowing your Bosch SHXM78W55N is discontinued helps set expectations: you focus on correct model matching, use the right documentation, and prioritize high-impact parts (like pumps and valves) to extend the dishwasher’s service life.

Last updated: January 2026

The most common Bosch dishwasher issue we see is a draining problem: water stays in the tub because the filter area is clogged, the drain hose is restricted, or the drain pump is obstructed. On the Bosch SHXM78W55N, start with the filter and drain path checks in the SHXM78W55N owner's manual.

Most common symptoms (and what they usually mean)

• Standing water after the cycle: clogged filter, blocked drain hose, or a drain pump issue
• Slow drain or gurgling: kinked hose, air gap or disposer connection blockage
• Won’t fill or fills slowly: water supply valve closed, inlet screen clogged, or inlet valve problem
• Poor cleaning: spray arms blocked, low water temperature, or circulation issue
• Soap cup not opening: dispenser door jammed or loading blocking the door

Quick checks we recommend first

1. Turn off power at the breaker; then remove and clean the filter assembly.
2. Check the sink drain connection (air gap or disposer inlet) for a plug.
3. Inspect the drain hose for kinks, crushing, or a low loop problem.
4. Look for debris at the pump cover area; clear glass, labels, and food scraps.
5. If the dishwasher drains intermittently, test the drain pump and consider replacing the dishwasher drain pump 00631200.

Common problems and likely parts

Problem	What to check first	Part that often fixes it
Not draining	Filter, hose, disposer/air gap	Dishwasher drain pump
Not filling	Supply valve, inlet screen	Dishwasher water inlet valve
Not cleaning	Spray arms, filters, water temp	Circulation pump with heater

Error codes can speed up diagnosis

If your Bosch is showing an error code, match it to the symptom before replacing parts. Use our Bosch dishwasher error codes guide to narrow down whether you are dealing with a drain, fill, heating, or sensor-related fault.

Why it matters

Drain and fill problems can trigger longer cycle times, poor cleaning, and repeated shutdowns. Catching a clog early also helps protect the drain pump, circulation pump, and electronic control from strain.

Last updated: January 2026

A Bosch dishwasher typically lasts 10 to 15 years with normal household use and basic care. For your Bosch SHXM78W55N, consistent cleaning, correct detergent use, and fixing small issues early are what most often determine whether you land closer to 10 years or 15.

What affects lifespan the most

• Water quality: hard water speeds up mineral buildup on internal parts.
• Routine cleaning: a clean filter and sump reduce strain on the pump system.
• Loading habits: overloading can block spray arms and reduce cleaning performance.
• Drain health: kinks or clogs force the drain system to work harder.
• Heat and wash performance: weak heating or circulation can lead to repeat cycles and extra wear.

Quick maintenance checklist (monthly)

• Clean the filter and check the sump area for debris (glass, labels, seeds).
• Run a dishwasher cleaner cycle or a hot wash to reduce grease and odor.
• Inspect the drain path for slow draining and check the hose routing.
• Confirm the spray arms spin freely and holes are not blocked.
• Use rinse aid if your results show spotting or poor drying.

Common wear items and what they do

Part	What you may notice when it’s wearing out	Example model-matched part
Drain system	Water left in tub, gurgling, intermittent draining	Dishwasher drain pump 00631200
Fill system	Slow fill, not enough water, poor wash results	Dishwasher water inlet valve 10023852
Wash and heat system	Poor cleaning, lukewarm water, longer cycles	Dishwasher circulation pump with heater (model-specific)

Why it matters

A dishwasher that is maintained usually reaches its full service life and cleans better along the way. Preventing clogs and buildup also helps protect high-cost components like the circulation pump, heater, and electronic control.

For model-specific care steps and cleaning intervals, follow the SHXM78W55N owner’s manual.

Last updated: January 2026