Toshiba
Electrical Overload / Short Circuit
The unit trips the circuit breaker when starting or during operation.
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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, faulty inverter module causing high inrush current.
How to Fix / Troubleshooting
Safety first: Do not repeatedly reset a breaker that trips immediately. This poses a risk of fire or electric shock. Turn off power and call a qualified technician.
- Step 1 – Visual inspection: With the power off, inspect indoor and outdoor wiring for burnt insulation or loose connections.
- Step 2 – Isolate the cause (technician): A technician can disconnect compressor and fan loads to determine which component is causing the trip.
- Step 3 – Replace faulty component: Depending on the diagnosis, the compressor, fan motor, or inverter PCB may need replacement.
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Repair Difficulty
Professional Required
5/5
Required Part
Compressor / Outdoor Fan Motor / Inverter PCB
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