Model reference
Magic Chef 31HA-10K
Range
1 document25 error codes11 service modes
Available documentation
Tech Tip
- Instruction Sheet - 397921012 pg
MyPros+ Max
Diagnose your Magic Chef 31HA-10K.
- 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 (25)
CodeMeaning
:Power failure indicationd1Blocked coin 1 or coin drop UI control circuit failure (coin recognition and…d2Voltage detected below 90 VAC for 8 seconds.d3Blocked coin 2 or coin drop UI control circuit failure (coin recognition and…d4Not receiving communications from installed debit card reader in Enhanced…E1Thermistor is open (open circuit detected).E2Thermistor has shorted (short circuit detected).E3User interface keyswitch or software mismatch between the control…F1Dryer motor control circuit error (cycles and price display disabled until…F1E4Microwave ACU PCBA failure.F2Touch panel failure.F2E1Stuck key failure on the touch panel.F3Exhaust thermistor shorted, temperature above 250°F (<500Ω) for 1 minute in Run…F3HHumidity sensor failure.F4UI is not receiving communications from CCU (cycles and price display disabled…F4E1Cavity temperature sensor failure.F4E4Humidity sensor error.F4E9AccuPop error.F5CCU is not receiving communications from UI (cycles and price display disabled…F6MW relay failure (Relay 4903 contacts may have welded closed).F7UI EEPROM memory is a CRC failure (cycles and price display disabled until…F8E5Exhaust air temperature detection failure.NTC OPEN, CALL FOR SERVICEHood thermistor (HF NTC) is open circuit.NTC SHORT, CALL FOR SERVICEHood thermistor (HF NTC) is shorted.PFPower failure occurred while the dryer was running.Service modes (11)
- diagnostic["Plug in microwave oven or reconnect power.","Press CANCEL button to enter Standby mode (colon ':'…
- Diagnostic Test Mode["Unit must be in Standby mode (plugged in, display off).","Alternately press the Less Time (∨) and…
- Diagnostic/Test Mode["Plug in microwave oven or reconnect power.","Press the Cancel keypad to standby (colon ':'…
- Diagnostics / Test Mode["Plug in microwave oven or reconnect power.","Press CANCEL button to enter standby (colon…
- Diagnostics mode (Failure code verification)["Press CANCEL","Press CANCEL","Press START"]
- Factory Test["Open the door","Set Temperature switch to AIR ONLY","Set Signal switch to LOUDER","Set Timer to…
- help["Enter set-up mode.","Navigate to special pricing option 2.XX.","Press the COTTON/WHITES button to…
- Self-diagnostic test mode["1
- setup["Method 1 (9150 models)
- Touch Panel and ACU PCBA Test (Test Mode)["Plug in microwave oven or reconnect power and press the Cancel keypad to standby (':')","Close…
- Touch Panel and ACU Test (Self-Diagnostic Test Mode)["Plug in microwave oven or reconnect power.","Press CANCEL button to enter standby (display shows…
Full entry steps, exit procedures, and test sequences are available in Max.
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