Whirlpool WDT730PAHZ Repair Guide
Whirlpool’s mainstream top-control dishwasher with the third rack. Solid mid-market machine on the shared Whirlpool platform — its blink-code diagnostics and commodity parts keep repairs quick.
Common problems & typical repair costs
| Problem | Likely cause | Typical fix | OEM part # | Typical cost |
|---|---|---|---|---|
| Won’t start, lights blink | Door latch/switch or control lock | Check lock; replace latch | — | $0–$220 |
| Standing water | Filter, check valve, or drain pump | Clean path; replace pump | — | $0–$300 |
| Not filling (F8E4-type) | Inlet valve | Replace valve | — | $120–$250 |
| Poor wash | Filter/arms or circulation pump | Clean; diagnose pump | — | $0–$450 |
Costs are national averages for professional repair (parts + labor). See the linked cost guides below for full breakdowns.
Error codes
| Code | What it means |
|---|---|
| F9 E1 | Drain fault |
| F8 E4 / F6-series | Fill/float faults |
| F5 E1 | Door switch |
| F2 E2 | UI/board communication |
Tech notes
Function codes read out via a console button-press sequence (check the tech sheet in the door). Most no-start calls end at the control-lock feature or the latch — check both before booking.
Cost guides for this machine’s common repairs
DIY step-by-step instructions for this model
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