Refrigerator
Haier
Updated Jul 25, 2026
Haier Refrigerator F1 Error — Fridge Temperature Sensor Fault & Fix
F1
Haier · RefrigeratorF1 on a Haier refrigerator means the fridge compartment temperature sensor (thermistor R1)…
Quick answer
F1 on a Haier refrigerator means the fridge compartment temperature sensor (thermistor R1) has an open or short circuit.
What F1 means
The fridge sensor measures the temperature in the fresh food compartment. The control board uses this reading to control the compressor and damper. When the sensor fails, the board cannot maintain the set temperature — the fridge may run too cold, too warm, or cycle erratically.
How to fix it
- Unplug for 10 minutes. A temporary sensor glitch may clear.
- Locate the sensor. Usually near the top-rear of the fridge compartment, clipped to the wall or shelf bracket.
- Reseat the connector at the main PCB.
- Test with a multimeter. At room temperature (25 degrees C), expect approximately 5-10 kOhm depending on model. Open or zero = replace.
- Replace with genuine Haier part.
What does the F1 code mean?
F1 indicates the fridge compartment temperature sensor (thermistor R1) has an open or short circuit.
Common causes
- Failed fridge thermistor
- Loose connector on the main PCB
- Damaged sensor wiring
- Main PCB sensor input fault (rare)
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How to fix the F1 error
Unplug for 10 minutes
Clears temporary glitches.
Locate sensor
Near top-rear of fridge compartment.
Reseat connector
At the main PCB.
Test with multimeter
5-10 kOhm at 25 degrees C. Replace if open or zero.
Replace
Use genuine Haier part matching your model.
Safety first: Always unplug before accessing the sensor or PCB.
Part you may need: Fridge temperature sensor (NTC thermistor R1)
Different Haier model series use different thermistor values. Always quote your full model number.
Frequently asked questions
F1 and fridge too warm?
Yes — without accurate temperature data, the board cannot control cooling properly.
F1 vs F2?
F1 = fridge sensor. F2 = freezer sensor. Different sensors, similar diagnostic process.
✎ Written by
REZAUL Karim (Riad)
REZAUL Karim (Riad) is the founder of ErrFixHub and a hands-on electronics and home-appliance repair specialist with over 15 years of experience diagnosing and fixing air conditioners, washing machines, refrigerators, inverters and other household appliances. He built ErrFixHub to turn cryptic error codes into clear, step-by-step fixes anyone can follow — cross-checking every code against manufacturer documentation and real repair-bench experience.
