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Why Does My Furnace Keep Shutting Itself Off?

DeFalco Plumbing & Heating • July 29, 2020

Learn About This Common Issue Across the Massapequa, NY Area

Are you having issues with your furnace? This can be very frustrating. If your furnace keeps shutting itself off, there is an issue. Luckily, this does mean the safety features of your furnace are functional and working. You may be curious as to what’s happening. Well, when your furnace turns on, it is noticing an unsafe condition. Then it will turn itself off. If this is happening, it is best to not wait until the safety mechanism stops working too. It is best to find the root of the issue and repair it if necessary. Here are some common reasons why your furnace may be turning itself off. 

Dirty or Clogged Filters

If your furnace is acting up, the first thing you should check is the filter. If your air filter is dirty and clogged up, this may be the cause of your problems. Clean out the filter or replace it. If this solves your problem, you are all set, if not, you should seek out professional help to address the issue. Another tip is to ensure your vents are open so air can flow properly through the system. 

Malfunctioning Thermostat

If your thermostat is not working properly, this can cause serious issues. Check to see if your thermostat is properly relaying the signals to the furnace. If it is, the furnace itself has issues. If not, your thermostat most likely needs to be replaced. 

Flame Sensor is Obstructed

One common cause for a furnace shutting off is the flame sensor. If this is covered in soot or is corroded, this can cause your furnace to shut off by itself. This is not something that can be repaired easily. It is important to enlist the help of a professional to handle the repairs to the flame sensor if repairs are necessary. 

Improperly Sized Furnace

If you just had a new furnace put into your home, and you are seeing that it turns off on its own, it may be too big for your home. It is very important that your furnace be an appropriate size for your home. If it is too large, it will heat your home too quickly and shut off. 

If you need heater repair or boiler service, enlist the help of a team of pros. Here at DeFalco Plumbing & Heating, our team takes our craft seriously. We are dedicated to providing you with exceptional service. Call us today to schedule an appointment. We are proud to offer our heating repair services to those in the Massapequa, West Babylon, Deer Park, & Bay Shore, NY areas.
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