Hisense
Overheating Electrical Component
Hisense air conditioner emits a burning or electrical smell.
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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
Burnt wiring or connector on PCB, Failing fan motor or compressor, Overheated power cord (portable/window), Foreign object contacting heating element (if equipped)
How to Fix / Troubleshooting
Safety first: Immediately turn off the unit and disconnect power if you smell burning. Do not continue to operate the unit.
- Step 1 – Visual inspection:
- After cooling, remove covers and look for burnt wires, melted plastic, or discoloration on PCBs.
- Step 2 – Check power cord (portable/window):
- Inspect for hot spots, discoloration, or deformation.
- Step 3 – Do not attempt temporary fixes:
- Do not tape over burnt wires or bypass safety devices.
- Step 4 – Technician repair: Have a qualified technician replace damaged wiring, connectors, or components and verify safe operation.
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Repair Difficulty
Professional Required
5/5
Required Part
Indoor Wiring Harness
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