What causes that burning smell when you turn your heater on for the season?

It’s that time of year again. Daytime temperatures are cooling off, and some nights are going to start getting downright chilly (depending on your definition)! With October fast approaching, we’re getting ready to field calls from concerned homeowners who have turned the heat on for the season and smell their system burning.

So why do so many people experience the same problem each year? Are HVAC burning smells normal? What can cause them? When should you call a pro to check on your system? Is there any way to mitigate or eliminate the burning heater smells?

This article will address all those questions, so read on for more information!

What causes annual burning heat smells? Is it normal?

In Knightdale, North Carolina, most months are spent trying to cool our homes–not keep them warm. During the hot months, dust can accumulate in your HVAC system and unused heating devices. Once the cold weather kicks in, your heater will burn that dust off. Your HVAC system should start to smell normal shortly thereafter.

Burning HVAC smells from dust accumulation are normal and nothing to fear as long as you dont experience symptoms of a more serious problem.

When should I call an HVAC technician about burning heat smells?

Of course, not all burning smells are normal. You should call to set up an appointment with an experienced HVAC technician in the Knightdale area (and probably shut off your heat in the meantime) if you notice any of the following smells:

1. Burning plastic
2. Electrical burning

Burning plastic can indicate worn parts or melting wire insulation (which electrical issues in your furnace could cause). 

Electrical burning smells could indicate a burning blower motor caused by restricted airflow or other (obviously) electrical issues. If you change the filter and the electrical burning smell persists, it’s time to call a pro ASAP. All Hours can respond promptly to your concerns at any time and get an experienced professional out to your home to diagnose and fix the problem fast.

How can I avoid burning smells when I turn my heat on in the fall 

Regular seasonal maintenance can help reduce, and in some cases fully prevent, severe burning smells when you first start your heat for the season. Our techs can clean your heating system and make sure all the parts are functioning normally before you turn the heat up on that first cold night. Give us a call!