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5 Signs of a Bad Blower Motor in Your Furnace

Furnace Repair

If your furnace in Bridgeton, MO, is more than 10 years old, it’s a good idea to have it inspected for a bad blower motor. A bad blower motor can cause your furnace to overheat and stop working. Below are five signs of a bad blower motor in your furnace.

Weak Airflow

If you notice that the airflow from your furnace is weak and your home experiences poor indoor air quality, it could be a sign of a bad blower motor. The blower motor is responsible for circulating air through the system. If it’s not working properly, the air won’t flow properly. As a result, your system won’t heat evenly.

Loud Noises

If you hear loud noises from your furnace, it could indicate a bad blower motor. The blower motor is in the fan assembly. If it’s going bad, it can make grinding or squealing noises.


If your system overheats, it could signify a bad blower motor. Signs of overheating include frequent cycling, burning odors, loud noises and poor airflow.

Furnace Shuts Off

If your system shuts off unexpectedly, it could indicate a bad blower motor. Furnaces with bad blower motors shut off because they’ve overheated and can no longer operate.

Increased Energy Bills

If you notice an increase in energy bills, it could signify a bad blower motor. That’s because bad blower motors strain furnaces and cause them to operate inefficiently. The longer you wait to repair your heating system, the higher the energy and repair costs will be in the long run.

If you notice any of these signs, call Fresh Air Heating & Cooling to inspect your furnace. We have the expertise to diagnose the problem and make the necessary repairs. We also offer preventative maintenance plans to keep your furnace running smoothly all winter long.

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