This guide explains all Haier Refrigerator error codes (CH series) with simple troubleshooting steps to help you identify and fix common issues safely before calling a technician.
F1
Freezer Sensor Fault
- Check freezer thermistor wiring connection.
- Inspect sensor for frost or physical damage.
- Test resistance values using a multimeter.
- Replace sensor if readings are out of range.
F2
Ambient Temperature Sensor Error
- Inspect ambient sensor wiring harness.
- Avoid placing unit near heat sources.
- Test sensor continuity.
- Replace sensor if faulty.
F3
Defrost Sensor Issue
- Check evaporator area for ice buildup.
- Inspect defrost sensor connection.
- Test sensor resistance values.
- Replace sensor if defective.
F4
Refrigerator Temperature Sensor Fault
- Inspect fridge compartment sensor wiring.
- Check for loose or corroded connectors.
- Test thermistor accuracy.
- Replace sensor if readings are incorrect.
F5
Communication Error Between Boards
- Check wiring between main control board and display board.
- Inspect connectors for looseness or corrosion.
- Reset power to the refrigerator for 5–10 minutes.
- Replace control board if issue persists.
F6
Control Signal Failure
- Inspect communication harness wiring.
- Check for moisture damage on PCB.
- Restart system after power reset.
- Replace main board if signals are missing.
E0
Ice Maker Malfunction
- Check water supply line is open.
- Inspect ice maker for blockage or jam.
- Reset ice maker module.
- Replace ice maker assembly if needed.
E1
Defrost Heater Error
- Test defrost heater continuity.
- Inspect wiring harness for damage.
- Check defrost control board operation.
- Replace heater if faulty.
E3
Defrost System Failure
- Inspect defrost timer or PCB control.
- Check evaporator for ice buildup.
- Test defrost sensor operation.
- Replace faulty defrost components.
E2
Fan Motor Failure
- Inspect evaporator fan for obstruction.
- Check fan motor wiring connection.
- Test fan motor operation.
- Replace motor if not spinning.
E4
Compressor Start Failure
- Check compressor relay or start capacitor.
- Inspect wiring to compressor.
- Ensure proper voltage supply.
- Replace start relay or compressor if needed.
E5
EEPROM Memory Error
- Disconnect power for 10 minutes.
- Check main control board for damage.
- Inspect for firmware corruption.
- Replace PCB if error persists.
E6
Control Board Failure
- Inspect PCB for burn marks or damage.
- Check all wiring harness connections.
- Reset power and retest system.
- Replace main control board if needed.
F7
Door Switch Fault
- Check if refrigerator door closes properly.
- Inspect door switch alignment.
- Test door switch continuity.
- Replace door switch if faulty.
F8
High Temperature Alarm
- Check if doors were left open too long.
- Inspect condenser coils for dust buildup.
- Ensure proper airflow inside compartments.
- Allow unit to stabilize and reset alarm.
F9
Low Voltage Detection
- Check household power supply stability.
- Avoid using extension cords.
- Inspect outlet and circuit breaker.
- Use voltage stabilizer if needed.
E7
Evaporator Sensor Failure
- Inspect evaporator sensor wiring.
- Check sensor placement on coil.
- Test resistance readings.
- Replace sensor if readings are abnormal.
E8
Condenser Fan Error
- Check condenser fan for obstruction.
- Inspect fan motor wiring.
- Clean dust and debris buildup.
- Replace fan motor if not operating.
E9
Refrigerant System Issue
- Check for weak cooling performance.
- Inspect for possible refrigerant leak.
- Verify compressor operation.
- Contact technician for gas recharge or repair.
E10
Defrost Timeout Error
- Check defrost heater operation.
- Inspect defrost timer or PCB control.
- Look for excessive ice buildup.
- Reset unit after manual defrost.
E11
Ice Maker Sensor Fault
- Check ice maker sensor connection.
- Inspect for ice blockage in module.
- Test sensor continuity.
- Replace sensor or ice maker assembly if needed.
E12
Water Supply Failure
- Check water inlet valve is open.
- Inspect water line for blockage or kink.
- Clean inlet filter screen.
- Verify water pressure is sufficient.
E13
Ice Maker Motor Jam
- Check ice tray for blockage or ice buildup.
- Inspect motor gear for obstruction.
- Reset ice maker module.
- Replace motor assembly if jam persists.
E14
Overload Protection Activated
- Reduce food load inside refrigerator.
- Check compressor temperature.
- Ensure proper ventilation around unit.
- Allow system to cool before restart.
E15
System Communication Delay
- Reset power to the refrigerator.
- Check wiring between modules.
- Inspect connectors for looseness.
- Replace control board if issue continues.