How To Fix A Short Cycling Furnace
What is Furnace Short Cycling?
Furnace short cycling is a common problem that can occur with your furnace if it isn't working correctly. Short cycling occurs when your furnace turns on and off very quickly, usually within a few minutes or even seconds. This happens when the thermostat is set to a temperature that is too low or the furnace isn't able to keep up with the demand. It can also occur when the furnace is too large for the home, which can cause it to turn on and off too quickly. Short cycling can cause a variety of problems, including increased energy bills, increased wear and tear on the furnace, and more.
What Causes Furnace Short Cycling?
There are several potential causes of furnace short cycling, including: a faulty thermostat, an oversized furnace, a clogged air filter, a dirty blower wheel, a faulty igniter, or a damaged heat exchanger. It can also occur if the air in the home is extremely dry or if the air ducts are clogged. If the furnace is new, it may be cycling too frequently because it is not properly sized for the home.
How to Diagnose Furnace Short Cycling
If you think your furnace is short cycling, it is important to diagnose the problem to determine the cause. Start by checking the thermostat to make sure it is set to the correct temperature. If the thermostat is set too low, it can cause the furnace to cycle too frequently. You should also check the air filter and make sure it is not clogged with dust and debris, as this can cause the furnace to overheat and cycle too frequently.
How to Fix Furnace Short Cycling
Once you have identified the cause of the short cycling, you can take steps to fix the problem. If the thermostat is set too low, you can adjust it to a higher temperature. If the air filter is clogged, you can replace it with a new one. If the blower wheel is dirty or the igniter is faulty, you may need to have a technician inspect and repair them. If the furnace is too large for the home, it may need to be replaced with a smaller unit.
Tips to Avoid Furnace Short Cycling
To avoid furnace short cycling, you should make sure the thermostat is set to the correct temperature and that the air filter is changed regularly. You should also have the furnace inspected and serviced annually by a qualified technician. If your furnace is new, make sure it is properly sized for your home. Finally, make sure the air ducts are clean and clear of dust and debris.
Conclusion
Furnace short cycling can be a frustrating problem, but it can usually be fixed by adjusting the thermostat, replacing the air filter, or having a technician inspect and repair the furnace. To avoid short cycling, you should make sure the thermostat is set correctly, the air filter is changed regularly, and the furnace is inspected and serviced annually. Following these tips can help keep your furnace running smoothly and efficiently for years to come.