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3 Reasons Why Your Furnace is Always Running

There can be a few possibilities that could relate to the roots of this puzzling problem. Finding out the reason and addressing it is always advisable to furnace owners. Sometimes, the owners can address such a problem by themselves. In serious cases, owners should go for the help of professional HVAC contractors. Some of the situations where such a problem may arise are mentioned below for your reference.

  • The Air Filter is Dirty

Your furnace needs to pull air into the equipment. This is done to warm the air before circulating back out through your vents. A dirty air filter obstructs this flow cycle in the furnace. When obstruction of heat happens, the furnace gains excess load. The furnace has to work overtime to try to keep up with demands. So the furnace will keep running until the desired temperature is attained.

In such a case, the consumers should replace the air filter as soon as possible. Owners who know the procedure of replacing the air filters should do the task regularly. Otherwise, they can contact nearby HVAC professionals for the same. 

  • Wrong Thermostat Setting

Generally, when the thermostat is set too high, the furnace will run to reach that temperature. One would probably notice that the house is too hot while the furnace is constantly running. It is also possible to set the thermostat to ‘on’ instead of ‘auto’. The furnace will remain in running mode when the setting is ‘on’. The owners should check the thermostat setting and should correct it.

  • A Faulty Limit Switch

The limit switch controls the level of heat in the furnace. When the thermostat signals the switch, it is the time to turn the heat on; the switch further signals the furnace. If the switch is faulty, the signals could be crossed, resulting in the furnace running. This is also a prominent reason for the problem. In such a case, the best way to tackle these issues is to consult with a heating contractor in Tucson, AZ

 At Air4U, we provide the best furnace services. You can reach us through our website or call us today to learn more!