F3 Serious Moderate DIY

Frigidaire Oven F3 — Oven Sensor Open Circuit

Frigidaire Oven · Error code F3

What F3 Means

Older-style code: the EOC sees an open circuit on the oven temperature sensor input. Equivalent to F31 on newer models.

Symptoms

  • F3 at preheat or shortly after
  • Oven heat cuts off
  • Temperature display stuck or wrong

Common Causes

1
Open oven sensor (RTD)

Internal element of the sensor probe has broken.

2
Disconnected sensor plug

Plug at the rear of the EOC has worked loose.

3
Broken sensor wire

Wire severed where it exits the cavity.

How to Fix It

  1. Cut power.
  2. Remove the rear panel; unplug the sensor.
  3. Measure resistance — open = bad sensor.
  4. Replace the sensor and inspect harness routing.
  5. Reassemble and verify F3 is gone before returning to service.

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.

Common replacement Frigidaire oven temperature sensor View on 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 →

Verified against manufacturer documentation: frigidaire.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.