Haier
No Power / Dead Unit
Wine cooler will not power on; display is blank and no sounds are heard.
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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
Blown internal fuse on main control PCB, Faulty power cord, Failed main control PCB, Tripped household circuit breaker
How to Fix / Troubleshooting
Safety: Unplug the unit and ensure the outlet is de-energized before opening any panels.
Steps to restore power:
- Check outlet: Test the wall outlet with another appliance. Reset any tripped breakers or GFCI outlets.
- Inspect power cord: Look for cuts, burns, or kinks in the cord. Replace the cord if damaged.
- Access main control PCB: Remove the rear panel to locate the main control board.
- Check internal fuse: Many Haier boards have a small glass or ceramic fuse. Test it with a multimeter for continuity. Replace only with the same type and rating if blown.
- Inspect board for damage: Look for burn marks or swollen components indicating board failure.
- Replace main control PCB: If the fuse is good but the unit remains dead, install a Haier-compatible main control PCB.
Note: If the new fuse blows immediately, there may be a short circuit that requires professional diagnosis.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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