KitchenAid · Oven Critical

F3E2 — Oven Temperature Sensor (RTD) Fault

F3E2 indicates a problem with the oven temperature sensor (RTD) or its wiring — open, shorted, or out of range. It is not an over-temperature condition (that is a different F3-family code). Test the sensor (~1080 ohms at room temperature) and its harness.

Keep using it?
No — service first
DIY difficulty
Moderate

How to fix it

  1. Cut power immediately at the breaker.
  2. Inspect the bake and broil elements — if they remain powered with the control off, a relay is welded.
  3. Test the temperature sensor (should read ~1080 ohms at room temp).
  4. Replace the control/relay board if a relay is stuck.
  5. Replace the sensor if it reads out of spec.
  6. Do not run the oven until the cause is fixed — risk of fire.

Why it happens

Typical signs: F3E2 on display · Oven shuts off mid-cycle · Burning smell or scorched food · Code follows runaway heating

  • Welded bake/broil relay Relay on the control board stuck closed, leaving the element powered.
  • Failed temperature sensor Sensor drifting low so control over-fires the element.
  • Door latch / self-clean fault Self-clean cycle ran with bad temperature data.

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.

  • KitchenAid oven temperature sensor RTD Common replacement
    Amazon →

More KitchenAid oven codes

All KitchenAid 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: producthelp.kitchenaid.com.