With the cold air outside, a working furnace keeps your home warm and cozy. However, if it doesn’t turn on, the cold air can seep in fast. You might require professional furnace repairs or it might be an easy fix. Here are three common reasons your furnace won’t turn on. 

Why Won’t the Furnace Turn On?

1. Tripped Circuit Breaker

If a circuit breaker is tripped, your furnace won’t be receiving any electricity to power on. A circuit breaker can trip for many reasons, including the power going out briefly or an overloaded circuit. You can check the breaker box in your home and flip the switch for the furnace. 

Turn the thermostat up by about five degrees to see if the furnace turns on again. If the breaker continues to trip frequently, there may be a loose wire or an electrical failure. However, if the breaker isn't tripped, there is probably another issue with the furnace. 

2. Dirty Air Filters

The air filters in the furnace clean the air of any debris before it flows into your home. Eventually, the component gets clogged and dirty and needs to be replaced. Clogged air filters can prevent airflow, which will cause the furnace to turn off. Check the air filters and replace them at least once a month to extend the unit’s life span.