Low furnace output is a common problem during the heating season, when demand on the system is high. It’s also one of the most inconvenient times to have that particular problem. If your furnace happens to be putting out less heat than you think it should be this heating season, there might be a number of different reasons why. Read on find out more about the various problems that might cause low furnace output, and what can be done about them.
Clogged Air Filter
If your furnace seems to be having trouble circulating much air at all, it might be due to a clogged air filter. The air filter is designed to protect the furnace from the dust and other particulate contaminants that are commonly found in the ducts of the home. While it does a good job at protecting the system, it can’t get rid of the contaminants that it collects. If the filter isn’t changed every three months or so, it will become clogged. This cuts off the majority of the air in the ducts from entering the furnace. No air into the furnace causes quite a few problems, including a drop in output. The good news is that changing the air filter should resolve this problem immediately.
Short cycling is what happens when your furnace turns itself on and off every couple of minutes. It’s extremely bad for the furnace, for a number of reasons. It cuts into the output for the furnace, since it doesn’t have the chance to complete a full heating cycle. However, the negative effects extend far beyond just lowering the output. The strain of constantly stopping the cycle before it can complete causes the wear and tear on the system to increase significantly. A furnace that is allowed to short cycle for an extended period of time will break down more often, and have its lifespan shortened by a number of years. Short cycling is typically the result of electrical issues, and you will definitely need a professional to fix it for you.
Air Handler Issues
The air handler is the part of the furnace that actually circulates air throughout the house during operation. It’s basically a large motor with a fan attached to it. The air handler motor can last for a very long time, but it will wear down eventually. If the motor starts to get towards the end of its useful lifespan, it will often start to generate a loud grinding sound while the furnace is operating. If you hear that sound, it’s a very good idea to call for repairs as soon as possible. If you’re lucky, it’s just the bearings that will need to be replaced. Otherwise, the entire air handler motor might need to be replaced, which is much more expensive.
Climate Control Heating & Cooling provides furnace service in Kearney, MO. If you need furnace repairs, contact us today to schedule an appointment. We’ll make sure that your furnace gets the repairs it needs to keep you warm throughout the winter.