Model reference
Magic Chef U31JA-2W-AD
Range
4 documents42 error codes15 service modes
Available documentation
Tech Sheet
- TECH SHEET8 pg
- TECH SHEET8 pg
- Tech Sheet – do not Discard12 pg
- wiring-sheet-W10875373.pdf31 pg
MyPros+ Max
Diagnose your Magic Chef U31JA-2W-AD.
- 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 (42)
CodeMeaning
CAAverage current limit tripCECommunications errorCIInstantaneous current limit tripE3The heater cannot warm the water to the desired temperature within 90 minutes…E6NTC open circuit failure (only alarmed during on-line test).E7NTC short circuit failure (only alarmed during on-line test).ErProcessor reset errorF0Default F codeF01Temperature sensor errorF02Oven temperature errorF03Electronic control configuration error.F05Door or latch errorF06Electronic control malfunction.F1-E0Key held down too long, or key is shorted.F1-E1Keypad keytail not connected.F1-E5Cancel key drive line open.F1E4Microwave ACU PCBA failure.F2All E codes indicate electronic control malfunction.F2E1Stuck key failure.F3-E0Temperature sensor opened.F3-E1Temperature sensor shorted.F3-E2Oven temp too high (over 575°F in Cook mode).F3-E3Oven temp too high (over 950°F in Clean mode).F4-E1Meat probe malfunctionF4E4Humidity sensor error.F4E9Smart pop error.F5-E0Door is open but latch is locked (door switch indicates open door and latch…F5-E1Self clean latch will not lock.F5-E5Self clean temperature (550°F) not reached within 45 minutes.F5-E7Self clean latch will not unlock.Service modes (15)
- Automatic Service DiagnosticsWith control OFF, press PREWASH OPTIONS → WASH TIME → PREWASH OPTIONS → WASH TIME within 5 seconds.
- Bake Temperature Offset Adjustment["Press BAKE pad for 5 seconds.","The default temp 0° or a previously entered offset temp will show…
- Cavity Size Programming["Must be done within 60 seconds of power up when replacing the electronic control.","Press BAKE…
- Diagnostics Mode1. Plug in microwave oven or reconnect power and press CANCEL button to standby (':'). 2. Close…
- Fahrenheit to Celsius Conversion["Press the BROIL pad for 5 seconds.","The temperature will be displayed in degrees Celsius…
- Fault Code Display (No Fault Check)["Press and hold '0' key for 5 seconds.","If no pre-existing faults, F0 will be displayed."]
- Fault Code Display (No Fault Verification)["Press and hold '0' key for 5 seconds.","If no pre-existing faults, F0 will be displayed."]
- Fault Code Display (No Faults)["Press and hold '0' key for 5 seconds.","If no pre-existing faults, F0 will be displayed."]
- Keypad and LED TestWith control OFF, press SET DELAY TIME → END OF CYCLE SIGNAL → SET DELAY TIME → END OF CYCLE SIGNAL…
- Nutate and Recirculate TestWith control OFF, press SET DELAY TIME → END OF CYCLE SIGNAL → SET DELAY TIME → END OF CYCLE SIGNAL…
- On-Line Check Mode (Service Diagnostics Cycle)1
- Service Mode (Keypad/LED Test)Close the door, then within 60 seconds press RINSE ONLY and START/RESUME
- Spin and Drain TestWith control OFF, press SET DELAY TIME → END OF CYCLE SIGNAL → SET DELAY TIME → END OF CYCLE SIGNAL…
- Touch Panel and ACU PCBA Diagnostic Test Mode1. Plug in microwave oven or reconnect power and press CANCEL button to standby (colon ':'…
- Water Inlet and Dispenser Valve Operating PS TestWith control OFF, press SET DELAY TIME → END OF CYCLE SIGNAL → SET DELAY TIME → END OF CYCLE SIGNAL…
Full entry steps, exit procedures, and test sequences are available in Max.
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