4 Reasons Why Your Furnace is Throwing Your Circuit Breaker and How to Repair It

Tripped circuit breakers are frustrating and stressful, particularly if it seems like the furnace is the culprit. If your breaker gets thrown once and normal performance returns after you reset it, there is no sudden cause for concern. In this situation, a surprise power surge is the most likely cause.

However, you can’t ignore the problem if the breaker gets thrown repeatedly. This can happen with both electric and gas furnaces. After all, even gas-fired furnaces count on electricity to operate the blower motor and other parts. Before you arrange furnace repair, consider the most likely reasons your furnace might be tripping the circuit breaker and how you can handle it.

1. Overloaded Furnace

Does your furnace work for a short time before flipping the breaker? This can indicate limited airflow. A dirty filter or closed air vents compels your furnace to work harder. The resulting electrical draw may overheat the system, strain the circuit andthrow the breaker. Consider the following tips to restore unimpeded airflow and take care of the issue:

  • Replace the air filter.
  • Open all air registers and make sure none are obstructed by furniture, curtains or rugs.
  • Don’t lean anything against the furnace or otherwise impede airflow into it.

2. Full Circuit

HVAC equipment should be on a dedicated circuit, but this might not happen in older homes. Inspect the labels on your electrical panel to learn if another appliance shares a circuit with your furnace. As an interim resolution, you can unplug the secondary item or avoid using it while the furnace is in use. A safer, more permanent solution is to have an electrician create an individual circuit for your HVAC system.

3. Short Circuit or Ground Fault

Does your furnace trigger the circuit breaker immediately upon startup? This may be evidence of an electrical problem within the furnace. An exposed wire could be shorting out the circuit when it brushes against a neutral wire or causes a ground fault if it meets a grounded wire or metal object. Either of these issues can increase the electrical draw enough to trip the circuit. You’ll do best with an HVAC specialist like Service Experts Heating & Air Conditioning to uncover and fix the problem.

4. Electrical Panel Trouble

If you eliminate any trouble with your furnace, the electrical panel could be the culprit. Lax connections or faulty breakers could lead to erratic performance. If you own an older residence, you might need to have the panel replaced if it’s too old, damaged or poorly installed. In this situation, you need help from an electrician.

Your furnace could continue tripping the circuit breaker in spite of your efforts to repair the issue by yourself. If this happens, leave the furnace off and get in touch with Service Experts Heating & Air Conditioning for help. Our HVAC Experts can help you find the issue and recommend the needed repair. We’re confident in our service, so we support it with a 100% Satisfaction Guarantee for a year.* For more details about us, or to schedule furnace repair, reach us at (713) 352-7887 today.

*Not applicable to the Advantage Program. See your signed Advantage Program Agreement for full details and exclusions. 100% Satisfaction Guarantee is subject to certain restrictions and limitations as set forth in the applicable Terms and Conditions.