Burning or electrical smell from indoor or outdoor unit during operation.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Immediately turn off power at the breaker and do not continue to operate the unit.
Steps to try:
- Visual inspection: After cooling, open the panel and look for burnt wires, discolored connectors, or charred PCB areas.
- Do not bypass safety devices: Never bypass fuses or thermal protectors.
When to call a technician: Any burning smell indicates a potentially serious fault that must be diagnosed and repaired by a professional before the unit is used again.
Repair Difficulty
Required Part
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