Panasonic Electrical Overload / Short Circuit

Unit trips the circuit breaker immediately or shortly after starting.

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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

Shorted compressor, Shorted outdoor fan motor, Damaged power wiring, Incorrect breaker size or shared circuit

How to Fix / Troubleshooting

Warning: Repeatedly resetting a tripping breaker is dangerous and can cause fire. Do not bypass or upsize the breaker.

Steps:

  • 1. Inspect wiring: With power OFF, check indoor and outdoor terminal blocks for burnt insulation or loose wires.
  • 2. Check for water ingress: Look for signs of water inside the outdoor electrical compartment.
  • 3. Verify dedicated circuit: Ensure the AC is on its own breaker sized according to Panasonic specifications.

If the breaker continues to trip, a technician must test compressor and motor insulation and repair or replace the faulty component.

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Repair Difficulty

Professional Required 5/5

Required Part

Inverter Compressor
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