Bosch SHXM78Z55N/01 dishwasher Parts

Yes. The Bosch dishwasher model SHXM78Z55N is a discontinued model, which means it is no longer being manufactured as a current production unit. Even when a model is discontinued, we can often still help you maintain it by identifying compatible replacement parts and service information in the SHXM78Z55N manual.

What “discontinued” means for SHXM78Z55N

A discontinued dishwasher model typically:

• Is no longer sold new through normal retail channels
• May still have parts available for repairs and maintenance
• Can still be serviced using model-specific troubleshooting and care steps
• May have successor models with similar features, but different parts

What to do next (parts and support)

If you’re keeping your SHXM78Z55N running, start with the most common maintenance and repair categories:

• Drain issues: check the filter system and drain path; a failed pump can require replacing the dishwasher drain pump 00631200
• Filling issues: verify water supply and inlet components; the dishwasher water inlet valve 10023852 is a common fix when the unit won’t fill
• Cleaning performance: inspect spray arms and circulation; clogs or wear can reduce wash pressure
• Leaks: inspect the door seal, hose connections, and drain hose routing
• Control problems: confirm the door is latching and the cycle is starting normally

Quick reference: discontinued model vs parts support

Item	What to expect for SHXM78Z55N	What you can do
New unit availability	Typically limited	Consider a comparable replacement model if needed
Repair parts	Often still available	Match parts by model and diagram
Documentation	Still usable	Use the SHXM78Z55N manual for operation and troubleshooting
Installation specs	Still relevant for service	Use the SHXM78Z55N installation guide if reinstalling or moving the unit

Why it matters

Knowing SHXM78Z55N is discontinued helps set expectations: you may not find the exact dishwasher sold new, but you can usually keep it operating reliably by using the correct Bosch-compatible parts, following the proper troubleshooting steps, and maintaining the filter and drain system.

Last updated: January 2026

A Bosch dishwasher typically lasts 10 to 15 years. For your Bosch SHXM78Z55N, reaching the high end of that range depends most on correct installation, routine filter and spray arm cleaning, and preventing chronic drain or fill issues that overwork the pump and heater. See the care guidance in the SHXM78Z55N use and care manual.

What affects lifespan the most

These are the biggest factors we see that shorten or extend dishwasher life:

• Filter maintenance: debris buildup reduces flow and strains the pump
• Water quality: hard water can leave mineral deposits on spray arms and internal passages
• Drain setup and restrictions: kinks, clogs, or poor routing can cause repeat drain problems
• Detergent and rinse aid habits: correct products and dosing reduce residue and wear
• Loading practices: blocking spray arms leads to poor cleaning and longer run times

Maintenance that helps SHXM78Z55N last longer

• Clean the filter system on a regular schedule (more often with heavy soil loads)
• Confirm upper and lower spray arms rotate freely and the holes are clear
• Wipe the door seal and inner door edges to help prevent leaks and odor
• Run hot water at the sink before starting if your incoming water is often cool
• Use a dishwasher cleaner periodically if you have hard water buildup

Quick reference

Task	Typical interval	Why it matters
Clean filter system	Every 1 to 3 months	Helps prevent clogs and pump strain
Inspect/clean spray arms	Every 3 to 6 months	Maintains wash pressure and coverage
Wipe door seal	Monthly	Helps prevent leaks and odor

When a repair may make sense

If the dishwasher is draining poorly or leaving standing water, checking the drain path and pump is a common next step; the compatible replacement is the dishwasher drain pump 00631200.

Why it matters

Knowing the typical 10 to 15 year lifespan helps you plan maintenance and decide when a repair is cost-effective for your SHXM78Z55N.

Last updated: January 2026

On the Bosch SHXM78Z55N dishwasher, we can’t identify a single “most common” failure from model-specific documentation alone. The troubleshooting guidance for this model most often points customers to drainage and cleaning-performance checks first, especially the filter system, spray arms, and drain path; see the SHXM78Z55N use and care manual.

What we check first on SHXM78Z55N (no-parts steps)

• Reset the cycle: press and hold Start for about 3 seconds, then allow about 1 minute for draining.
• Clean the filter system and remove trapped debris.
• Inspect the drain pump area for glass, labels, or food remnants.
• Make sure spray arms can rotate freely and the nozzles are not clogged.
• Verify incoming hot water is about 120°F (49°C) before starting a cycle.

Drain hose routing matters (installation-specific)

This Bosch model’s installation instructions call out a required drain-hose rise. If the hose is too low, kinked, or restricted, the dishwasher may not drain properly.

Drain hose requirement	Target	Why it matters
Minimum rise above floor	33 in (84 cm)	Prevents poor draining and backflow
Maximum rise above floor	43 in (110 cm)	Avoids overloading the drain pump

For the exact routing methods (high loop or air gap), use the SHXM78Z55N installation guide.

When a part is a likely suspect

If the filters are clean, the hose routing meets the height requirement, and the unit still won’t drain or drains slowly, these model-compatible parts are common next checks:

• Dishwasher drain pump 00631200 (pump that pushes wastewater out)
• Dishwasher drain hose 00744881 (hose that carries wastewater to the sink drain or disposer)
• Dishwasher check valve 00611320 (helps prevent drain water from flowing back into the tub)

Why it matters

Drain and wash-circulation restrictions can leave standing water, cause odor, and reduce cleaning because the dishwasher can’t maintain clean, circulating wash water.

Last updated: January 2026