Furnace intermittently trips the household circuit breaker.
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: Repeated breaker tripping is a serious electrical issue. Do not replace a breaker with a larger size.
Steps to check:
- Visual inspection: With power off, inspect wiring inside the Heil furnace for burnt insulation, loose connections, or wires rubbing on sharp metal edges.
- Isolate components: A technician-level step is to disconnect motors one at a time to see when the breaker stops tripping.
When to call a pro: This fault should be diagnosed by a qualified technician or electrician who can safely test motors and wiring and replace defective components.