Carrier
Overcurrent / Electrical Short
Furnace occasionally trips the household circuit breaker.
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
Shorted blower motor windings, shorted inducer motor, damaged wiring harness, incorrect breaker size
How to Fix / Troubleshooting
Safety first: Do not repeatedly reset a breaker that keeps tripping. Turn off the breaker and leave the furnace off until inspected.
- Visual inspection: With breaker off, remove furnace panels and look for burned wires, loose connections, or signs of arcing.
- Isolate components (pro): A technician can disconnect blower or inducer motors to isolate the shorted component.
Because this involves line voltage and potential fire risk, have a licensed technician or electrician perform further diagnosis and repair.
Advertisements
Repair Difficulty
Professional Required
5/5
Advertisements