Why Does My Furnace Keep Shutting Off?

By Air Care Heating & Air Conditioning

Have you used your furnace in the past and found that it shuts off quickly after turning it on, seemingly for no reason at all?

Even though this problem is annoying at best the reality is that most furnaces begin to shut off by themselves when the furnace starts to break down or it’s not been properly maintained for a while.

Thankfully, you can avoid high energy bills due to your furnace continuing to shut off on its own by following these trouble shooting tips.

Tip #1 – You Have a Dirty Air Filter

One of the most common causes of a furnace turning off by itself only after a few minutes of use (short cycling) is a dirty air filter.

Keeping your air filter clean is important because the heat exchanger in your furnace needs the air to continually blow over it to keep it from shutting down.

If you’ve found your furnaces air filter to be dirty you should determine if the filter is washable then wash that filter yourself or you should replace that air filter with a new one.

Tip #2 – Your Thermostat Has Issues

Did you know that if your thermostat is placed too close to a heat source like sunlight or another heat source it will think your home is too warm and shut the furnace off? If you suspect this is the case you should contact an experienced HVAC technician and have your thermostat moved to another wall in your home.

Let’s say that your thermostat isn’t directly near a heat source in your home; the reality is that another technical issue could be causing your thermostat to malfunction and you should hire a technician to have it repaired and possibly replaced (if needed).

Tip #3 – You May Have the Wrong Sized Furnace for Your House

Last of all, but most important, another reason why your furnace is shutting off too quickly could be due to you having a furnace that’s too big for your house and it’s heating your home too quickly.

Unfortunately, the process of your home heating up too quickly and the furnace shutting itself off will only continue until it breaks down and needs to be repaired or replaced.

What’s the solution to the problem? Hire a contractor to come to your house and do various calculations, including a heat load test, to determine if your furnace is the wrong size and should be replaced.

Schedule an Appointment with Air Care Heating & Air Conditioning

To schedule, an appointment with Air Care Heating & Air Conditioning contact us today by calling us at (949) 482-2911 or click here to connect with us online.

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