Frigidaire · Oven Serious

F4 — Oven Sensor Shorted

Older-style fault: the EOC sees a short circuit at the oven temperature sensor input. Equivalent to F31 on newer boards.

Keep using it?
Limited use only
DIY difficulty
Moderate
Verified against
frigidaire.com ↗

How to fix it

  1. Power off.
  2. Unplug the sensor at the EOC and test resistance — should be ~1080 ohms; near-zero means shorted.
  3. Inspect the sensor harness behind the cavity for pinch points.
  4. Replace sensor and/or repair harness.
  5. If sensor and harness are good, replace the EOC.

Why it happens

Typical signs: F4 during heat call · Heat cuts off · May follow a recent rack movement that pinched the sensor

  • Shorted oven sensor Internal short in the probe.
  • Pinched / chafed sensor harness Wire grounded against the cavity wall.
  • Failed EOC Less common — input circuit on the board is bad.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • Frigidaire oven temperature sensor Common replacement
    Amazon →

More Frigidaire oven codes

F0 F0 — Touchpad / Membrane Communication Error F1 F1 — Runaway Temperature / Stuck Key (Older Models) F10 F10 — Runaway Temperature F11 F11 — Shorted keypad button F12 Range/Oven F12 — Control Microprocessor Fault F13 Range/Oven F13 — Control Memory (EEPROM) Failure

All Frigidaire codes → All oven codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: frigidaire.com.