Whirlpool Oven F4 error code
F4 means the oven temperature sensor has shorted. The control reads a false extreme temperature, so it shuts the oven down rather than heating blindly.
Also shown as: F4
Last updated: October 6, 2026
What causes the F4 error?
- Shorted oven temperature sensor (RTD probe)
- Melted or pinched sensor wires touching each other
- Moisture or carbon bridging the sensor terminals
- Control board misreading the sensor
How to fix Whirlpool F4 — step by step
Work through these in order, from simplest and safest first. Stop as soon as the code clears.
- Power-reset the range
Switch the range breaker fully OFF for 2 minutes, then back ON. A brief electrical glitch can produce a false shorted reading. - Inspect the sensor
With the breaker OFF and the oven cool, look at the sensor probe on the back wall of the oven. Check for melted insulation, wires touching metal, or heavy carbon bridging the terminals. Clean off loose carbon gently.Safety warning: Confirm the breaker is off and the oven is cool before inspecting. - Note the failure pattern
If F4 appears as soon as you set any temperature, the sensor is likely shorted solid. Tell your technician — it speeds up the diagnosis.
When to call a technician
- F4 returns after a reset
- The sensor tests shorted on a meter
- Sensor wiring is melted or damaged
- The control board is suspected after the sensor tests good
Frequently asked questions
What is the difference between F3 and F4?
F3 means the sensor circuit is open (no signal at all). F4 means it is shorted (a false extreme reading). Both lock out the oven and both usually end with sensor replacement.
What should the sensor read on a meter?
About 1,000–1,200 ohms at room temperature. A reading near zero confirms a short.
Can a shorted sensor cause overheating?
The control is designed to shut down on F4 rather than risk it. Do not try to work around the code.
Sources
Every meaning and fix above was checked against official manufacturer documentation:
FixCode provides general troubleshooting information only — not professional repair advice. If you are unsure about any step, stop and call a qualified technician. Repairs done incorrectly can be dangerous and may void your warranty.