When you turn your furnace on only to discover it is not running due to a tripped breaker, it may seem inconvenient at the time. However, if the breaker to the furnace continues to trip, this is more than an inconvenience. This is a problem. When a furnace keeps tripping there is often a problem that needs to be corrected. Hal Mechanical will share some of the common reasons why a furnace breaker will continuously trip and why you need to seek HVAC repairs.
Furnace is Overloaded
A furnace may trip more than once because it is overloaded. A furnace may begin to work harder and harder due to a problem. In some cases the problem is super minor. For example, your air filters may be dirty or the air vents may be closed or blocked. To correct this problem you simply want to check the air vents and make sure they are open and not obstructed. Next change out the air filters. You will want to remove any strain on the furnace and see if that stops the breakers from tripping.
Circuit is Overloaded
A furnace should have its own dedicated circuit. A furnace requires so much power that it should never share a circuit with anything else. However, in older homes this may not be the case. As older furnaces did not use the amount of power as a modern furnace, sometimes the furnace circuit was shared with another appliance. Sometimes a new appliance is consuming more power, taking the power away from the furnace. If the furnace is sharing its circuit with anything else, you are most likely overloading the circuit. You will want to add a dedicated circuit for your furnace and HVAC system if you are in an older home.
Another reason why a furnace may frequently trip, is when there is a mechanical problem. When the blower motor wears down it puts stress on the furnace. When the furnace has a worn down component that is not taking up its work load properly, this will cause overheating or stress which in turn causes the breaker to trip. Unfortunately, there can be a number of different components that may be failing. You will need to have the furnace diagnosed and inspected. Once the component has been located, you will have to replace the component. Depending on the age of the furnace, the entire unit may be worn down which is causing the breakers to trip. When the breaker trips constantly, it may be a sign that the furnace is at the end of its life.
If you are lucky, the problem may not be the furnace at all, but the electrical panel itself has a problem. Breakers can also wear down and need to be replaced. There may also be a loose connection within the circuit. If the furnace isn’t the problem, you may need to have your electrical system checked.