mypros+
Model reference

Magic Chef U31JN-2KLX-EC

Range

8 documents92 error codes24 service modes

Available documentation

Tech Sheet

  • TECH SHEET - 9758011 - Rev A12 pg
    Covers this model
  • tech sheet 160233566 pg
    Covers this model
  • TECH SHEET - W10159200 - Rev A6 pg
    Covers this model
  • tech sheet w10772115 reva20 pg
    Covers this model
  • TECH SHEET - 4451877 - Rev C8 pg
    Covers this model
  • TECH SHEET - Whirlpool Range YKEBS278DW38 pg
    Covers this model

Tech Tip

  • Instruction Sheet - 818546912 pg
    Covers this model
  • Instruction Sheet - 818478312 pg
    Covers this model
MyPros+ Max

Diagnose your Magic Chef U31JN-2KLX-EC.

  • Step-by-step diagnostics from the service manual
  • Test values, resistance specs, and wiring references
  • Verified part numbers when replacement is needed
Start diagnosing

$29/month · Cancel anytime · Or $9.95 3-day pass

Error codes (92)

CodeMeaning
:Power failure indication1c1cShorted key detected on the control board.1c2cKeyboard tail disconnected; keyboard loop reading improper value.1c31Cancel key circuit problem (upper oven / single cavity).1c32Cancel key circuit problem (lower oven).1c4cMicro communication failure.1c5cVCC or ground fault on control board.1c6cEEPROM error; no response from EEPROM.1c7cControl not calibrated; calibration value out of range.1c8cCooking program error; CRC invalid.1d11Runaway temperature (650°F) with door unlocked in upper/single oven cavity…1d12Runaway temperature (650°F) with door unlocked in lower oven cavity; sensor…1d21Runaway temperature (950°F) with door locked in upper/single oven cavity…1d22Runaway temperature (950°F) with door locked in lower oven cavity; sensor…3d11Temperature sensor open (upper or single cavity); sensor resistance reads…3d12Temperature sensor open (lower cavity); sensor resistance reads infinite.3d21Temperature sensor shorted (upper or single cavity); sensor resistance reads 0…3d22Temperature sensor shorted (lower cavity); sensor resistance reads 0 ohms.9d11Door latch will not lock (upper or single cavity); lock switch not closed when…9d12Door latch will not lock (lower cavity); lock switch not closed.9d21Door latch will not unlock (upper or single cavity); unlock switch not closed…9d22Door latch will not unlock (lower cavity); unlock switch not closed.9d31Latch state unknown9d32Latch state unknown9d41Latch state unknown9d42Latch state unknownE0-F1EEPROM communications failure, typically caused by power line noise or…E0-F2EEPROM checksum failure, typically caused by power line noise or lightning.E0-F3Key contact closed for more than 60 secondsE0-F5Clean temperature out of range (too high)
View all 92 error codes
E1-F1EEPROM communications failure, typically caused by power line noise or…E1-F2EEPROM checksum failure, typically caused by power line noise or lightning.E1-F3Break in oven sensor circuit (open sensor, loosened or disconnected sensor…E1-F5Door switch open during clean cycleE2-F3Short in oven sensor circuit (short in sensor, sensor shorted to casing…E3-F3BAKE/BROIL temperature out of range (too high)F0Default F codeF0 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.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.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.F3-E0Temperature sensor opened.F3-E1Temperature sensor shorted.F3-E2Oven temperature too high (over 575°F / 301°C in Cook mode).F3-E3Oven temperature too high (over 950°F / 510°C in Clean mode).F3HHumidity sensor failure.F4 E2Over temperature during cook mode (temperature runaway).F4 E3Over temperature during clean mode (temperature runaway).F4 E7Over temperature cavity 2 (temperature runaway error).F4-E1Meat probe malfunctionF4E1Cavity temperature sensor failure.F4E4Humidity sensor error.F4E9AccuPop 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.F5-E0Door is open but latch is locked (door switch closed indicating open door and…F5-E1Self clean latch will not lock.F5-E5Self clean temperature (550°F / 288°C) not reached within 45 minutes.F5-E7Self clean latch will not unlock.F6MW relay failure (Relay 4903 contacts may have welded closed).F6 E4Lost communication between display board and power board.F6 E5Cancel key error.F6-E0Switch pulse return line not connectedF8E5Exhaust 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.SABOven is in Sabbath Mode.

Service modes (24)

  • 24 Hour Clock Toggle["Press and hold UPPER CANCEL and DELAY pads for 3 seconds."]
  • Bake Temperature Offset Adjustment1
  • Beeper Volume Adjustment["Hold UPPER CANCEL and MORE+ pads for 3 seconds."]
  • Cavity Size ProgrammingWithin 60 seconds of power up, press the following keys in order
  • Child Lock Out["Press and hold UPPER CANCEL and COOK & HOLD pads for 3 seconds.","'OFF' will display where the…
  • Clock Display Toggle["Press and hold UPPER CANCEL and CLOCK pads for 3 seconds."]
  • Demo Mode["Press and hold UPPER CANCEL and LESS
  • Diagnostic Code Display["Enter Quick Test Mode (press and hold UPPER CANCEL and UPPER BROIL pads for 3 seconds within 5…
  • Diagnostic mode["Press the Cancel key to place the range in an idle state.","Press the Cancel and Start keys in…
  • 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 Default Reset["Press and hold UPPER CANCEL and WARM pads for 3 seconds."]
  • Fahrenheit to Celsius Conversion1
  • Fault Code Display (No Fault)Press and hold '0' key for 5 seconds
  • Lower Oven Temperature Adjustment["Press Lower Bake pad.","Enter 550 on the digit-pad.","Immediately press and hold Lower Bake pad…
  • Manual Diagnostics Mode 1 (Full - within 120 seconds of power up)Within 120 seconds of power-up, press Cancel/OFF, Cancel/OFF, then Start
  • Manual Diagnostics Mode 2 (Limited - after 120 seconds of power up)After 120 seconds of power-up, press Cancel/OFF, Cancel/OFF, then Start
  • Quick Test Mode["Within 5 minutes of power-up, press and hold UPPER CANCEL and UPPER BROIL pads simultaneously for…
  • Sabbath Mode["Set oven to BAKE mode first.","Hold CLOCK pad for 5 seconds to activate Sabbath mode."]
  • Self-diagnostic test mode["1
  • Temperature Adjustment (Calibration)Press and hold BAKE pad for 5 seconds
  • Temperature Display Toggle (°F/°C)["Press and hold UPPER CANCEL and UPPER BAKE pads for 3 seconds."]
  • Touch Panel and ACU PCBA Test (Test Mode)["Plug in microwave oven or reconnect power and press the Cancel keypad to standby (':')","Close…
  • Upper Oven Temperature Adjustment["Press Upper Bake pad.","Enter 550 on the digit-pad.","Immediately press and hold Upper Bake pad…

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

Related Magic Chef range models

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass