Error Codes
Does my Maytag dishwasher have a filter that needs to be cleaned?
Yes. Your Maytag DWU4910AAX dishwasher uses a filter area in the bottom of the tub that should be checked and cleaned regularly to keep wash performance strong and prevent drain problems. Most households get best results cleaning it about once a month.
- Turn the dishwasher off and let it cool.
- Pull out the lower rack.
- Look in the sump area at the bottom of the tub (under the lower spray arm) for a removable screen or filter.
- Remove the filter or screen (typically a twist-lock or lift-out style).
- Rinse under hot water; use a soft brush to remove grease and debris.
- Reinstall it fully seated so it seals and locks in place.
- Remove: food particles, labels, glass bits, bone fragments
- Clean with: hot water, soft brush, mild dish soap if greasy
- Do not use: harsh abrasives that can tear mesh or warp plastic
- Do not run without the filter or screen installed
- Do not force parts; if it will not unlock, re-check the twist direction
If the dishwasher still leaves grit on dishes, smells, or drains slowly after cleaning, these checks usually fix it:
- Verify the drain path is clear and the hose is not kinked
- Clean the sump area thoroughly (no standing debris)
- Run a maintenance cleaning cycle
- Check for a restricted or damaged filter component such as the filter WP99001791
- If the unit will not drain, inspect the drain hose WPY913158 for clogs or internal collapse
| Symptom | Most common cause | What to do first |
|---|---|---|
| Grit on glasses | Filter/sump debris | Clean filter area and rinse screen |
| Odor | Grease buildup | Clean filter area; run a cleaning cycle |
| Slow drain | Partial blockage | Check filter area; inspect drain hose |
| Poor cleaning | Restricted circulation | Clean filter area; check spray arm holes |
A clean filter area helps the wash pump circulate water properly and keeps debris from re-depositing on dishes. It also reduces the chance of clogs that can lead to standing water at the end of the cycle.
Last updated: February 2026
What is the most common problem with a Maytag dishwasher?
The most common Maytag dishwasher problem (including model DWU4910AAX) is poor cleaning, usually caused by restricted water flow from a dirty filter, clogged spray arms, or loading that blocks the wash action. The next most common issues are not draining and door leaks.
- Confirm the spray arms spin freely and are not blocked by tall pans.
- Clean the filter area and remove debris (glass, labels, food).
- Use fresh detergent and run hot water at the sink before starting the cycle.
- Avoid overloading; keep the center of the lower rack clear for spray coverage.
- If you see water at the front corners, inspect the door seal for gaps or tears.
| Symptom | Most likely cause | What to check next |
|---|---|---|
| Dishes still dirty | Restricted circulation | Clean filter, clear spray arm holes, reduce blocking loads |
| Water left in tub | Drain restriction | Check sink/disposer connection, drain hose routing, clogs |
| Leaks at door | Door sealing issue | Inspect and replace the dishwasher door seal WP902894 if worn |
| Detergent cup not opening | Dispenser actuator issue | Check the dispenser mechanism and the wax motor WP902899 |
If basic cleaning and loading changes do not help, these model-matched parts are frequent fixes:
- Filter WP99001791 (restricted wash performance)
- Drain hose WPY913158 (slow drain, backflow, or leaks at connections)
- Dishwasher door seal WP902894 (leaks at the door)
- Door switch 99002254 or latch W10131752 (won’t start or stops mid-cycle)
- Float WP99002363 or water switch WP99002560 (overfilling, underfilling, odd fill behavior)
Poor cleaning, draining problems, and leaks usually start as airflow or water-flow restrictions. Fixing them early helps protect the pump, prevents odors, and reduces the chance of water damage under the dishwasher.
For troubleshooting steps by symptom, use our DIY guides like dishwasher not cleaning dishes video and dishwasher not draining video.
Last updated: February 2026
What are the parts of a Maytag dishwasher?
A Maytag dishwasher like model DWU4910AAX is built around a fill system, wash (circulation) system, drain system, and door/latch system. If you know which function is failing (fills, washes, drains, or seals), we can narrow it to the most likely parts.
- Water inlet valve: lets water into the tub at the start of the cycle
- Float and water level sensing: helps prevent overfilling
- Circulation pump and impeller: moves wash water through the spray system
- Spray arms: distribute water to clean dishes
- Filtration: traps food soil to protect the pump and improve cleaning
- Drain hose and drain path: carries dirty water out to the sink drain/disposer
- Door seal, latch, and door switch: keep the door closed and watertight so the unit can run safely
- Detergent dispenser actuator: opens the detergent cup at the right time
These are model-matched examples that often solve specific symptoms:
| Symptom | Likely part to check | Example model-matched part |
|---|---|---|
| Leaks at the door | Door seal | Dishwasher door seal WP902894 |
| Won’t start or stops when door moves | Door switch | Door switch 99002254 |
| Overfills or won’t fill correctly | Float or water switch | Float WP99002363 / water switch WP99002560 |
| Poor wash or weak spray | Circulation impeller or filter | Circulating WP902461 / filter WP99001791 |
| Won’t drain | Drain hose or drain restriction | Drain hose WPY913158 |
Dishwasher problems usually trace back to one system. For example, “not cleaning” points to circulation, spray, or filtration, while “won’t start” points to the door latch and door switch. Matching the symptom to the system helps you buy the right Maytag dishwasher parts the first time.
- For blinking lights or fault patterns, use Maytag microclean he dishwasher error codes
- If the unit has power but won’t run, start with dishwasher wont start video
- If dishes are still dirty, follow dishwasher not cleaning dishes video
Last updated: February 2026
