Frigidaire Oven Error Code F4

F4Frigidaire Oven

What this code means

Open circuit detected in the oven temperature sensor for 16 temperature conversions in a row.

First step from the service manual

Press the CANCEL key for the affected oven; if failure persists after cancel, alarm will not reactivate unless a baking or cleaning function is attempted.

Next steps: diagnose the root cause

1
Verify the error code is active

Power cycle the unit and see if the code returns. If it does, the fault is persistent and requires diagnosis.

2
Get the full diagnostic procedure

Get step-by-step guidance, test values, and wiring diagrams from the OEM service manual.

Start diagnosing F4 on your Frigidaire oven

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What’s available for Frigidaire oven models

Access Frigidaire oven service manuals, wiring schematics, exploded parts views, and error code references on MyPros+.

Related Frigidaire oven error codes

CFCheck food indicator displayed when bake time is 75% complete during Convection…d-ODoor left open too long during steam clean cycle (open more than 4 minutes).EOven control has detected a fault or error condition (any E code displayed on…EndIndicates that a timed cooking or cleaning cycle has completed and the oven has…FElectronic control has detected a fault condition; the display shows an F…F0EEPROM selectable option that enables the control to recognize a shorted key…F1Control failureF10Control has sensed a potential runaway (over temperature) oven condition…F11Shorted key detectedF13Control's internal checksum may have become corrupted.F14Misconnected keyboard cableF15Controller self check failed.F2Communication problemF20Communication problem between the display board and the relay board.F23Control has detected a problem with the communication link with the variable…F3Oven probe problemF30Open RTD sensor probe or wiring problemF31Shorted RTD sensor probe or wiring problemF32Key loop is detected as an open circuit.F6Failure detected in the EEPROM checksum comparison indicating the EEPROM…F62Missing zero-cross signalF7Failure detected in the clean lock/phase circuitry for 16 seconds in a row.F8Door lock motor runs for 2 minutes without seeing either the lock or phase…F9Latch motor problemF90Motor door lock fault detected by the electronic oven control (Model B…F91Door motor mechanism failureF92Door motor mechanism failureF93Door motor mechanism failureF94Door motor mechanism failureF95Door motor mechanism failureHotProbe temperature has exceeded 250°F (121°C), indicating the probe sensor may…LOCOven Lockout is active; the oven door is locked and the oven is prevented from…PFPower failure detected; displayed when the range is first plugged in or when…RRRemove RacksSFSabbath failure
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