Whirlpool Oven F4 E3 — What It Means & How to Fix It
Also shown as F4E3 on some models.
F4 E3 points to the microwave exhaust air temperature sensor or its wiring; reset power and call service if it returns.
What this code means
Whirlpool says there may be a problem with the microwave exhaust air temperature sensor, or the associated wiring.
Combination wall ovens; unrelated to dryer or dishwasher F4E3.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| Exhaust air sensor fault | Common | No — technician job |
| Wiring fault | Occasional | No — technician job |
| Blocked vent | Occasional | Yes — clear vents |
What you can try yourself
- Check the microwave vents are clear.
- Reset the breaker.
- Monitor.
- Service on a repeat.
When to call a technician
- Repeat code.
- Fan runs constantly.
- Overheating.
Typical professional repair cost: About $120–$250.
Frequently asked questions
What does F4 E3 mean on a wall oven?
A possible microwave exhaust air temperature sensor or wiring problem.
Same as dryer F4E3?
No.
Reset?
Breaker off one minute.
Sources checked
Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.
Related Whirlpool codes
- Whirlpool Oven F0 E0 F0 E0 on a Whirlpool wall oven appears when the electronic oven control cannot recognise what type of problem has occurred; reset the breaker for one minute and call service if it returns.
- Whirlpool Oven F1 E0 F1 E0 on a wall oven indicates a possible problem with the user interface (touchpad), the control, or the wiring — clean the panel, reset the breaker, and call service if it persists.
- Whirlpool Oven F1 E1 F1 E1 points to the oven appliance manager control — one of the oven's control boards — or its wiring; reset power and call service if it returns.
- Whirlpool Oven F1 E2 F1 E2 points to the microwave user interface on a combination wall oven, or its wiring; reset power and call service if it repeats.
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