Troubleshooting Common Gas Furnace Problems: Tips For Homeowners

26 June 2015
 Categories: Construction & Contractors, Blog


A gas furnace is an efficient means of heating just about any size home. However, as with any home heating system, there are always problems that can arise over the years with gas furnace operation. Of course, anytime you're dealing with a major gas furnace problem, it's best to contact a professional. However, it's always a good idea to do a little simple troubleshooting with common gas furnace problems before you spend your money on hiring an expert.

Blower Won't Shut Off

One common problem homeowners experience with gas furnaces is that of the blower constantly running, which can cost additional money and lead to premature wear and tear on the furnace blower itself. The first step a homeowner should take is to check the furnace and make sure that the blower or fan is set to "auto," and not "on," "high," or "low." If this isn't the problem, it's possible that the furnace air filter needs to be changed; a dirty filter could lead to blockage of the limit switch, which is the part responsible for turning the blower on and off as needed.

Operation is Too Loud

Another common complaint homeowners have with their gas furnaces is that they're simply too loud during operation. Any time a rattle, rumble, or squeak is heard from a gas furnace, this should be a cause for concern. Often times, squeaks and squeals are the sign of an air leak within the system itself, which can easily be sealed with tape or putty. Rattles and rumbles, on the other hand, can be caused by excess dirt and debris within the burners on a furnace, which can easily be cleaned out (just be sure to shut off power to the furnace first).

Furnace Won't Heat

It's always an unsettling situation when your furnace stops blowing out warm air, but try not to panic right away. Start by checking to make sure that the gas furnace's pilot light hasn't gone out; if that's the case, you can easily re-light it to resume operation. It's also a good idea to check the gas supply to the home, as there could be a local temporary outage. If this isn't the case, however, then it's probably time to contact a professional, like those at McLaughlin Air Conditioning Co Inc., to diagnose and repair the problem. From there, you can have the necessary work done to get your gas furnace kicked back on in no time at all.