Furnaces are the most common kind of forced air system available, occupying the majority of homes in the U.S. With so many people using furnaces in their homes, a pattern starts to emerge regarding the maintenance issues that a lot of them face.
Below you’ll find some of the most common furnace repairs, and what you should do about them.
Dirty Air Filters
A dirty air filter is an extremely common and easy to replace issue with furnaces. It is recommended that you change your air filter at least once a month, but some people either don’t know or don’t think it’s that big of a deal. While not a big problem itself, a bad air filter can cause a whole host of problems in other areas of the furnace, some of which can be life threatening. Possibly the most dangerous side effect of a dirty air filter is a cracked heat exchanger, which can vent poisonous combustion gases into your home. So, if you haven’t changed your air filter in a while or don’t know how, call an HVAC professional right away.
Pilot Light/Burner Issues
The pilot light is a continuously burning flame at the bottom of your furnace. This flame lights the burners, which keeps your furnace lit and consuming fuel. If your pilot light goes out, your furnace won’t have any way to turn on. Similarly, if your burner is dirty or broken your furnace will not light either. A burner can suffer a partial decrease in efficiency, leading to your furnace struggling to produce enough heat. A pilot light, by contrast, often simply blows out.
An imbalance in the gas flow to your furnace can cause cold spots or sudden stops in your heating cycle. This is usually caused by the valve not being set properly, or occasionally a blockage in the gas line. You will definitely need a professional to fix this for you. Tampering with the gas line without expert knowledge is dangerous and not recommended.
If your furnace seems to be having problems, call Cal-West Air Conditioning. We conduct heating repairs all over San Diego.