Error code · Haier
F3 · Temperature sensor error
The temperature sensor is malfunctioning, which may affect the appliance's ability to heat water properly. Check if the sensor is connected securely.
Washing machineCaution — Know When to StopFixLens verified
Safe first steps
- Unplug the washing machine from the power outlet.
- Locate the temperature sensor and check if it is securely connected.
- If the connection is loose, reconnect the temperature sensor firmly.
- Plug the washing machine back into the power outlet and run a test cycle.
- If the error persists after checking the sensor, arrange a service visit — do not use the appliance.
When to stop
- Stop if the temperature sensor shows visible damage or if the appliance does not heat water after the test cycle — risk of component damage.
Likely cause
The temperature sensor is malfunctioning, which may affect the appliance's ability to heat water properly. Check if the sensor is connected securely.
Verification
Reviewed by: automated manual extraction
Verified against Haier HW07-CP1439N technical documentation
FixLens publishes its own structured technical logic verified against Haier HW07-CP1439N documentation · last verified April 23, 2026.
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