What Can Cause a Furnace to Overheat in Ladson, SC?

Your furnace may be overheating if it produces a burning smell, a humming noise or is cycling on and off. Although it has a built-in limit switch that shuts your heating system off if it overheats, frequent overheating can negatively affect your heating system. Here we will discuss three reasons that your furnace may need repair in Ladson, SC.

Restricted Airflow

According to the U.S. Environmental Protection Agency, you spend up to 90% of your time indoors. With all that time at home, you want to make sure your furnace is working well. Poor air circulation can hurt your furnace because its internal components may get too hot when there’s limited airflow.

Failing to change your air filter regularly allows it to clog and restrict airflow. This makes your furnace overwork and overheat.

By the same token, blocked return vents can limit air circulation in your system and make it overheat. It’s important to inspect your air filters and return vents regularly and replace them if they’re dirty.

Old Age

As your heating system ages, it wears out, and its efficiency naturally reduces. If your heating system is 10 to 15 years old, it should not surprise you if its limit switches stop functioning. While a furnace repair will most likely fix the limit switch, your technician may advise you that replacing the heating system isn’t too far off in the future.

Furnace Mechanical Failure

Your furnace can overheat due to mechanical failure. There could be an issue with electrical wiring or a fan blower. As such, your heating system could be having a short circuit or inadequate air circulation.

Some of the mechanical problems can be catastrophic and could make your heating system break down completely. Scheduling regular maintenance can help, as an HVAC technician can spot many problems before it becomes full-blown.

If you have a problem with your furnace, our HVAC team can help you fix the issue. Contact us at AC Heating and Air Conditioning Services for all your HVAC service needs.

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