Model reference

Magic Chef U31FY-7LNX-04

Range

7 documents48 error codes5 service modes

Available documentation

Tech Sheet

Tech Sheet - W10445495 - Rev A2 pg
Covers this model
TECH SHEET - 9758011 - Rev A12 pg
Covers this model
tech sheet w10772115 reva20 pg
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Tech Tip

Instruction Sheet - 397921012 pg
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Instruction Sheet4 pg
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Other

Technical sheet W10717712 reva8 pg
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Installation Guide

Instrucciones de instalacion27 pg
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MyPros+ Max

Diagnose your Magic Chef U31FY-7LNX-04.

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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Power failure indication - the colon

From Service Manual 269335, p.27:

1.Access service mode to confirm the active fault code and read stored error history.

2.Measure control board supply voltage at test points. Expected: 12 VDC and 5 VDC.

3.Inspect all connectors on the main control for corrosion or backed-out pins.

Part WPW10804018

Electronic control board

Error codes (48)

CodeMeaning

:Power failure indication bFIce bin full detected during ice maker harvest test.E1Cannot find ice break position during ice maker harvest test.E2Cannot find end of harvest location during ice maker harvest test.E3Cannot find home position during ice maker harvest test.E4Multiple failures detected during ice maker harvest test.F0 E0No failure (default code).F1 E0Internal error.F1 E1Internal error.F1 E2Internal error.F1 E3Internal error.F1 E4Internal error.F1 E5Internal error.F1 E6Internal error.F1 E7Internal error.F1 E8Internal error.F1 E9Internal error.F1E4Microwave ACU PCBA failure.F2Touch panel failure.F2 E0Stuck key (shorted key) on keypad.F2 E1Keypad disconnected.F2E1Stuck key failure on the touch panel.F3 E0Main oven sensor open (top oven sensor opened).F3 E1Main oven sensor shorted (top oven sensor shorted).F3 E2Meat probe shorted.F3 E4Bottom oven sensor open (bottom oven sensor open).F3 E5Bottom oven sensor shorted (bottom oven sensor shorted).F3 E6Warming drawer sensor open.F3 E7Warming drawer sensor shorted.F3HHumidity sensor failure.

View all 48 error codes

F4 E2Over temperature during cook mode (temperature runaway).F4 E3Over temperature during clean mode (temperature runaway).F4 E7Over temperature cavity 2 (temperature runaway error).F4E4Humidity sensor error.F5 E0Door latch mismatch (door and latch switches do not agree).F5 E1No operating latch / latch not operating.F5 E2Door switch fault.F5 E4Latch switch fault.F5 E7Unlock door error / cannot unlock door.F6MW relay failure (Relay 4903 contacts may have welded closed).F6 E4Lost communication between display board and power board.F6 E5Cancel key error.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.OPOpen circuit detected on thermistor.PAAll ice maker harvest test steps successfully passed.SHShort circuit detected on thermistor.

Service modes (5)

Diagnostic mode["Press the Cancel key to place the range in an idle state.","Press the Cancel and Start keys in…
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…
Self-diagnostic test mode["1
Service Diagnostics Mode["Press and hold the Recommended button.","While holding the Recommended button, press and hold the…

Full entry steps, exit procedures, and test sequences are available in Max.

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