F8
Haier
Power Supply / Voltage Fault
Display shows F8 and the refrigerator may not cool or may shut down unexpectedly.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Low or unstable mains voltage, Internal power supply failure on main PCB, Loose power cord connection, Damaged surge components on PCB
How to Fix / Troubleshooting
Safety: Always unplug the refrigerator before inspecting the power cord or control board. Do not attempt live voltage measurements unless you are trained and equipped.
Steps:
- 1. Check outlet: Plug another appliance or a tester into the same outlet to confirm proper voltage and grounding. Avoid using extension cords.
- 2. Inspect power cord: Look for cuts, burns, or kinks in the Haier power cord. Replace the cord if damaged.
- 3. Inspect main PCB: Remove the control cover and look for burned components or bulging capacitors in the power supply section.
- 4. Reseat connectors: Ensure the power input connector is firmly seated on the PCB.
- 5. Replace PCB: If the supply voltage is good but F8 persists, the main control board's power supply is likely faulty and should be replaced.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board (PCB)
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