Fraser-Johnston
Overheating Electrical Component
Burning or electrical smell from indoor or outdoor unit
Advertisements
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.
Advertisements
Possible Causes
Burning motor windings, Overheated contactor or relay, Loose high-voltage connection, Shorted control board component
How to Fix / Troubleshooting
Safety: Immediately turn off power at the breaker and disconnect. Do not continue operating the unit.
- Visual inspection: After components cool, open access panels and look for burnt wires, melted insulation, or scorched PCB areas.
- Tighten connections: Tighten any loose lugs or terminals and replace any discolored wiring.
- Replace failed parts: Replace burnt contactors, relays, or motors with Fraser‑Johnston-approved parts.
- Test before full use: After repairs, run the system under supervision and monitor for any recurring smell.
Advertisements
Repair Difficulty
Hard
4/5
Advertisements