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Professional Heating & Air Blog

Uncommon Heating Repairs You Might Run Into


When it comes to heating repairs, there are some that are run-of-the-mill and some that happen maybe once in a lifetime. There are also issues that are unique to different types of heating systems. For example, you’ll never have to worry about a cracked heat exchanger in an electric furnace.

Since you’ve undoubtedly experienced the basic types of issues that can come up, let’s look at some unusual problems. Some need to be addressed immediately while some can wait. Whatever the issue, be sure to call us instead of Googling “repair heating system in Mandeville” We’re equipped to handle any issue, big or small, common or uncommon.

Cracked Heat Exchanger

If you own a gas furnace, you definitely need to be aware of this potential issue. We don’t want to cause unnecessary worry or alarm, but because a cracked heat exchanger poses a risk of gas and carbon monoxide exposure, you need to know the signs.

The heat exchanger is a vital component in a gas furnace. Its job is to transfer heat from one place to another, hence its name. The heat exchanger also contains the exhaust/flue gas and if cracks develop, it could potentially allow the flue gas to mix with the air that’s being heated and distributed to your home. 

This is why you should have multiple carbon monoxide (CO) detectors in your home if you have a gas furnace. If the leak is bad enough, it could trigger your alarms. Other signs of a cracked heat exchanger include a buildup of soot, unusual odors, furnace corrosion, moisture around the furnace, and an abnormal flame.

Fan Speed Is Too High

Your furnace has a fan that distributes the hot air to the rooms of your home. The fan has a sensor designed to ensure it works at the proper speed. When the fan is allowed to blow too fast, it’ll produce cool air. That’s not what you want from a furnace! We can check the sensor to make sure it’s working properly so you’re not throwing money away on utility bills.

Heat Pump or Furnace Won’t Shut Off

This issue can be somewhat concerning and rightly so. When your heating system won’t turn off even though it’s plenty warm in your home, you may be severely confused about what’s going wrong. You might try decreasing the temperature or turning it off altogether. 

This could be caused by a number of issues. The most likely culprit is that there’s an issue with the thermostat since this is what tells your furnace or heat pump to turn on or off. The thermostat could have faulty wiring, switches, or heating sensors. Luckily, it’s an easy fix for our team to replace the thermostat and even upgrade it to a smart/Wi-Fi model if you have an outdated thermostat. 

If your furnace won’t shut off, it could be a damaged primary controller. This is the main heating element and if it becomes damaged or isn’t working right, then the furnace can’t regulate temperature.

When you need it done right contact Professional Heating & Air.

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