F4 — shorted oven sensor (legacy code)
On older Amana ranges (pre-Whirlpool platform), F4 indicates a shorted oven temperature sensor. The control disables heat to protect the cavity.
- Keep using it?
- Limited use only
- DIY difficulty
- Moderate
How to fix it
- Power off at the breaker.
- Access the sensor at the top rear of oven cavity; unplug it.
- Measure resistance — should be ~1080 ohms at 75F.
- Inspect harness for shorts to ground.
- Replace sensor; if good, replace control board.
Why it happens
Typical signs: F4 in display · Oven won't heat · Display may show wildly high temperature · Bake/broil canceled
- Shorted oven temperature sensor Internal short — should read ~1080 ohms at room temp; <900 indicates failure.
- Pinched sensor harness shorted to chassis Wire chafed against sheet metal.
- Failed control board Input circuit failure.
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.
- Amana oven temperature sensor Common replacementAmazon →
More Amana oven codes
Frequently asked questions
What does the F4 code mean on a Amana oven?
On older Amana ranges (pre-Whirlpool platform), F4 indicates a shorted oven temperature sensor. The control disables heat to protect the cavity.
What causes the F4 code on a Amana oven?
Shorted oven temperature sensor: Internal short — should read ~1080 ohms at room temp; <900 indicates failure. Pinched sensor harness shorted to chassis: Wire chafed against sheet metal. Failed control board: Input circuit failure.
Is it safe to keep using a Amana oven with a F4 error?
Limited use only. This is rated a serious-severity fault.
How do I fix F4 on a Amana oven?
Power off at the breaker. Access the sensor at the top rear of oven cavity; unplug it. Measure resistance — should be ~1080 ohms at 75F.
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.