Panasonic
Compressor Not Running / Start Circuit Failure
Refrigerator not cooling at all, interior warm in both compartments, lights work but no compressor or fan noise
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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
Failed inverter PCB, Open compressor winding, Faulty main control PCB, Loose power or compressor harness connection
How to Fix / Troubleshooting
Safety: Unplug the refrigerator before removing rear covers. High voltage is present at compressor and inverter.
- Step 1 – Listen and observe: Plug in the unit and listen for any humming or clicking from the compressor area. If completely silent, proceed.
- Step 2 – Check basic power: Confirm the outlet works and the refrigerator's power cord is intact. Verify that the control is not in demo mode.
- Step 3 – Inspect rear components: Remove the rear lower cover. Check that all harnesses to the compressor, inverter, and condenser fan are firmly connected.
- Step 4 – Control board check: If there are no error codes and no attempt to start, the main PCB or inverter PCB may be defective. Visual inspection for burnt components can help identify failure.
- Step 5 – Professional service: Testing compressor windings and inverter outputs requires a technician. Arrange service for accurate diagnosis and part replacement.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control PCB
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