Model reference
Magic Chef U31FS-7W-02
Range
8 error codes7 service modes
MyPros+ Max
Diagnose your Magic Chef U31FS-7W-02.
- 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 (8)
CodeMeaning
:Power failure indicationF2Membrane switch (touch panel) failure.F3HHumidity sensor failure.F6Microwave relay failure.NTC OPENHF NTC thermistor is open (displays 'NTC OPEN, CALL FOR SERVICE').NTC OPEN, CALL FOR SERVICEHF NTC thermistor is open.NTC SHORTHF NTC thermistor is shorted (displays 'NTC SHORT, CALL FOR SERVICE').NTC SHORT, CALL FOR SERVICEHF NTC thermistor is shorted.Service modes (7)
- Self-Diagnostic / Test Mode["Press and hold the CANCEL/OFF button while opening the door.","While still holding the CANCEL/OFF…
- Self-diagnostic / Touch Panel and Microcomputer Board Test["1. Depress the CANCEL button while opening the door.","2. While still depressing the CANCEL…
- Self-Diagnostic / Touch Panel and PCBA Test["Press and hold the OFF/CANCEL button while opening the door.","While still holding the OFF/CANCEL…
- Self-diagnostic test mode["Open the door.","Depress and hold the CANCEL•OFF button while the door is open.","While still…
- Self-diagnostic test mode (Touch panel and microcomputer board test)["Open the door.","Depress and hold the CANCEL•OFF button.","While still depressing CANCEL•OFF…
- Self-Diagnostic Test Mode (Touch Panel and PCBA Test)["Press and hold the OFF/CANCEL button while opening the door.","While still holding the OFF/CANCEL…
- Touch Panel and PCBA Self-Diagnostic Test Mode["Press and hold the STOP/CLEAR button while opening the door.","While still holding the STOP/CLEAR…
Full entry steps, exit procedures, and test sequences are available in Max.
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