F3Warning
Haier Oven/Range F3 Error Code
The oven temperature sensor is reading too low due to a short circuit.
Common causes
- Shorted oven temperature sensor
- Sensor wiring shorted to chassis
How to fix it
- Unplug the oven.
- Access the sensor and check for exposed wires touching metal.
- Disconnect sensor and measure resistance; a shorted sensor reads near 0 ohms.
- Replace sensor if shorted.
⚠ When to call a pro: If sensor and wiring appear fine, the control board may be at fault.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.