Fixing A Continuously Running Furnace Fan
Do you have a continuously running furnace fan that just won’t shut off when it is supposed to? This is not a big problem, but obviously one that needs to be addressed sooner rather than later. The last thing you want is to let your furnace fan blow when it should not be doing so. Not only is this bad for your unit, but it will cost you money. On top of all this, it can be very annoying to listen to a fan that never stops.
The good thing is that fixing a continuously running furnace fan is not as hard as many people believe. The first thing you have to do is make sure that your furnace fan is really the problem. Are you sure that this is what you hear? For most people, determining if this is the issue at hand is relatively simple – you should not have any problems pinpointing this issue. Furnace blower fans need to be replaced from time to time and forms part of basic gas furnace maintenance. Of course, this may not be the problem that you are dealing with. For instance, a problem with the control board may force your fan to stay on for longer than it should. This is usually a problem that must be dealt with by a professional. Most homeowners do not know the first thing about fixing the control board for their furnace.
The furnace fan thermostat is also something that you have to consider. If the thermal limit switch goes bad, your fan may continuously run until the problem is fixed. Again, this is something that you may have to call in a professional to do. If you want to learn more about the furnace fan timer in your unit and how it works, consult with your owner’s manual. This will tell you when your fan is supposed to go on, in relation to the ignition, as well as when it should turn off. If the times do not equal what you have been experiencing there is a chance that you will have to make a repair. This may require you to buy some spare gas furnace parts to fix the problem. For some, fixing a continuously running furnace fan is a job that they can handle without professional assistance. But be warned never try to repair a furnace without basic knowledge on furnace repairs.
Going anywhere near a furnace without some experience and know how, is a bad idea. With so many reasons why a furnace fan can run continuously it would be best to hire out the job unless you know exactly what you are looking for. All of this information should aid you in fixing a continuously running furnace fan.
