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Identifying Common Furnace Issues by Their Symptoms

When you get sick, your body will show symptoms. Doctors analyze these symptoms to figure out the root cause and then prescribe treatment to fix the issue. Your furnace is the same way: when something goes wrong, it will start showing symptoms, and you can use those symptoms to identify problems and fix them to keep your furnace running properly. Here are a few common problems and the symptoms you can use to identify them.

Dirty Air Filter

This is perhaps the most common problem when it comes to your furnace, and has a wide range of different symptoms. If your utility bills are extremely high, that might be because your furnace isn’t pushing enough air through the system to heat your home, meaning it has to run longer and more often. Always check your air filter first.

Worn Out Blower Motor

A blower motor that has grown old will likely need to be replaced, or at the very least re-lubricated. One common sign that your furnace blower motor is the source of your problems is loud obnoxious noises coming from your furnace when it switches on, including grinding or squeaking sounds.

Malfunctioning Thermostat

Does your fan seem to be turning on and off at inopportune times? Do you find you constantly have to adjust the temperature in your home to maintain a comfortable level? Will your system not turn on when you flip the switch? These are all signs that your problem may not lie with your system itself, but with the small box you use to control it. Consider replacing your thermostat.

Improperly Sized Furnace

A furnace that’s too small won’t be able to adequately heat your home, however a furnace that’s too large is also not a good thing. When a furnace unit is too large, it will start “short cycling” or turning on and off quickly, running for just a few minutes at a time, all the while struggling to keep your home heated evenly. This may not be news you want to hear, but you may need a different furnace.

Faulty Ignition

Heaters that utilize natural gas to create the heat have an ignition system that is responsible for lighting the gas, much like your kitchen stove. However, if something happens to the ignition and it can’t light the gas, your home can’t get warm. If your heater isn’t putting out any heat even though it’s turned on, or you smell natural gas in your home, this may be the source of your problem.

Need a furnace repair? Call the experts at Phoenix Air Conditioning, LLC today at 888-660-4337 and request a service appointment with one of our Palm Beach County furnace repair professionals.