Furnace Not Blowing Hot Air

Changing the dirty air filter can solve this problem. Other potential problems include a bad blower fan or limit control switch. There are many different variations of.

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Luckily swapping out a hot surface ignitor is easy.

Furnace not blowing hot air. Advanced troubleshooting of a furnace not blowing air 1. Thermostat is set too low make sure the thermostat is set to a higher temperature. It s just been switched on any furnace will blow cold air when it starts up. Damaged or dirty ducting inspect the duct system for leaks.

Top 6 reasons why your furnace isn t blowing hot air 1. Replacing a broken hot surface ignitor. Check your furnace blower fan. Auto setting will tell the furnace only to blow warm into your home when the furnace is on.

Fix your furnace if it s not blowing warm air 42 hot surface ignitors. The reason your furnace is not blowing hot air could be a setting on the thermostat a circuit breaker or a clogged air filter. A hot surface ignitor works much like the filament in a light bulb. Finding the right ignitor.

The dirty air filter blocks the airflow causing the furnace to run longer to heat your home until it overheats. Furnace overheating can be the cause of your cold air dilemma.