Panasonic
No Power / Dead Unit
Unit will not power on at all; no lights or display.
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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, Faulty power cord, Failed main control PCB power supply, Defective power switch
How to Fix / Troubleshooting
Safety first: Unplug the unit before opening. If you are not comfortable working with mains voltage, seek professional help.
- Check outlet and breaker: Test the outlet with another device and verify the circuit breaker is not tripped.
- Inspect power cord: Look for visible damage. Test continuity from plug to internal connections; replace the cord if open.
- Internal fuse: Access the main PCB and locate the fuse. Test with a meter and replace with the same rating if blown. If it blows again immediately, a short exists that must be diagnosed.
- Power switch: Test the on/off switch or relay for continuity when turned on. Replace if faulty.
- PCB replacement: If the low‑voltage power supply on the PCB is dead (no 5V/12V outputs), replace the main control PCB.
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Repair Difficulty
Medium
3/5
Required Part
Main Control PCB
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