4 Reasons Why Your Furnace is Tripping Your Circuit Breaker and How to Solve It

Tripped circuit breakers are irritating and stressful, especially if it seems like the furnace is the cause. If your breaker gets thrown once and normal performance starts after you reset it, there is no immediate cause for alarm. In this instance, an unrelated power surge is the most likely cause. 

However, you can’t ignore the issue if the breaker gets thrown multiple times. This may happen with both electric and gas furnaces. After all, even gas-fired furnaces need electricity to run the blower motor and other pieces. Before you arrange furnace repair, consider the most likely reasons your furnace would be blowing the circuit breaker and how you can stop it. 

1. Overworked Furnace 

Does your furnace start for a brief time before tripping the breaker? This could stem from limited airflow. A dirty filter or closed air vents compels your furnace to work harder. The increased electrical draw may overwork the system, strain the circuit and trip the breaker. Consider the following tips to restore consistent airflow and resolve the problem: 

  • Swap out the air filter. 
  • Open all air registers and make certain none are blocked by furniture, curtains or rugs. 
  • Don’t place anything against the furnace or otherwise restrict airflow into it. 

2. Full Circuit 

HVAC equipment does best on a lone circuit, but this may not be the case in older homes. Examine the labels on your electrical panel to find out if another appliance shares a circuit with your furnace. As a temporary measure, you can unplug the secondary item or avoid running it while the furnace is in use. A better, more lasting solution is to have an electrician put in an individual circuit for your HVAC system. 

3. Short Circuit or Ground Fault 

Does your furnace flip the circuit breaker as soon as it starts? This may be evidence of an electrical problem inside the furnace. An exposed wire could be shorting out the circuit when it reaches a neutral wire or causes a ground fault if it meets a grounded wire or metal object. Either of these things can increase the electrical draw enough to trigger the circuit. You’ll need an HVAC professional like Service Experts Heating, Air Conditioning & Plumbing to identify and repair the trouble. 

4. Electrical Panel Issue 

If you eliminate any concerns with your furnace, the electrical panel could be to blame. Lax connections or faulty breakers will sometimes lead to inconsistent performance. If you own an older home, you could need to have the panel replaced if it’s outdated, damaged or poorly installed. In this instance, you need assistance from an electrician. 

Your furnace may continue tripping the circuit breaker regardless of your efforts to resolve the issue by yourself. If this is the case, leave the furnace off and call Service Experts Heating, Air Conditioning & Plumbing for assistance. Our HVAC Experts can help you identify the problem and suggest the necessary repair. We’re proud of our work, so we back it with a 100% Satisfaction Guarantee for a year.* For more info about us, or to request furnace repair, reach us at 866-397-3787 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. 

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