Model reference
Maytag MHWZ400TW00
Washer
2 documents20 error codes4 service modes
Available documentation
Service Manual
- TECHNICAL EDUCATION JOB AID 8178686 ML-8 FRONT-LOADING WASHER EPIC z™96 pg
Other
- maytag epic with oxi prewash option2 pg
MyPros+ Max
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- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
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Error codes (20)
CodeMeaning
F01EEPROM errorF02Pump drive errorF03Main relays errorF11Motor Control Unit has internal failure; repeating under or over voltage, or…F20No water detected entering machine or pressure switch trip not detectedF21Long drainF22Door lock errorF23Heater failureF24Water temperature sensor errorF25Drive motor tachometer errorF26Door switch errorF27Overflow conditionF28Serial communication errorF29Door unlock errorF30Dispenser system errorF31MCU failureF33Pump drive system errorF34Main relays errorrLLoad inside drum during cleaning washer cycleSDSuds lockService modes (4)
- Manual Diagnostic Test1
- Quick Diagnostic Test (bypasses error history)1
- Quick Entry Diagnostic Test (bypassing Service History)1
- Service History Mode & Diagnostic Test1
Full entry steps, exit procedures, and test sequences are available in Max.
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