Model reference
Maytag MHWZ400TQ02
Washer
7 documents50 error codes8 service modes
Available documentation
Tech Sheet
- Tech Sheet - W10207733 - Rev B16 pg
- Tech Sheet W10207733 Maytag Epic Z Washer MHWZ600TW0116 pg
Service Manual
- TECHNICAL EDUCATION JOB AID 8178686 ML-8 FRONT-LOADING WASHER EPIC z™96 pg
Bulletin
- Service Pointer - 81787722 pg
Other
- maytag epic with oxi prewash option2 pg
- Service Pointer - 8178722 (Excessive Shaking)_81787221 pg
Installation Guide
- Performance Series Automatic Washer Use & Care Guide64 pg
MyPros+ Max
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- Step-by-step diagnostics from the service manual
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Error codes (50)
CodeMeaning
F/01EEPROM communication error between the Central Control Unit (CCU) and the…F/02Pump drive errorF/03Main relays errorF/06Motor Control Unit (MCU) internal failure with repeating under/over voltage or…F/07No water detected entering machine or pressure switch trip not detected after 6…F/21Long drainF/22Door lock errorF/24Overflow conditionF/25Door switch errorF/26Door unlock errorF/27Overflow condition (alternate display for same overflow fault as F/24).F/28Serial communication error between the Central Control Unit (CCU) and the Motor…F/29Dispenser system errorF/30Water temperature sensor (NTC) errorF/31MCU failureF/32Pump drive system errorF/34Load detected inside drum during cleaning washer cycle.F/35Drive motor tachometer errorF01EEPROM errorF02Pump drive errorF03Main relays errorF11Motor Control Unit has internal failure; repeating under or over voltage, or…F2Motor Control Unit (MCU) has an internal failure; if failure occurs during…F20No water detected entering machine or pressure switch trip not detectedF21Long drainF22Door lock errorF23Overflow conditionF24Water temperature sensor errorF25Drive motor tachometer errorF26Door lock errorView all 50 error codes
F27Water heater errorF28Water temperature sensor (NTC) errorF29Door unlock errorF30Motor drive errorF31Door switch errorF32Load detected in drum at start of CLEAN WASHER cycle (detection by weight).F33Dispenser system errorF34Door unlock errorF35Overflow conditionF40Drain pump connection lost during the drain cycleF41Door unlock errorF42Serial communication errorF43Door switch errorF5Pump driver fails to activate, one of the main relays is not working properly…F52MCU heatsink overtemperature errorF70Serial communication errorF71MCU heartbeat/thermal cutout errorF8No water detected entering machine or pressure switch trip not detected…rLLoad detected in drum at the start of the CLEAN WASHER cycle (detection by…SdSuds lock
Service modes (8)
- Manual Diagnostic Test["Ensure washer is empty and control is in the OFF state.","Close the door.","Select any one key…
- Quick Diagnostic Test (Bypass Service History)["Ensure drum is empty.","Close the door.","Push POWER.","Select the CLEAN WASHER cycle.","Press…
- Quick Diagnostic Test (bypasses error history)1
- Quick Entry Diagnostic Test (bypasses error history)["Ensure washer drum is empty.","Close the door.","Press POWER.","Select the CLEAN WASHER…
- Quick Entry Diagnostic Test (Bypassing Service History Mode)["Ensure washer drum is empty.","Close the door.","Push POWER.","Select the CLEAN WASHER…
- Quick Entry Diagnostic Test (bypassing Service History)1
- Service History Mode & Diagnostic Test["Ensure washer is empty and control is in the OFF state.","Close the door.","Select any one key…
- Service History Mode & Diagnostic Test (Universal Entry)["Ensure washer is empty and control is in OFF state.","Close the door.","Select any one key…
Full entry steps, exit procedures, and test sequences are available in Max.
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