What Causes Short-Cycling Furnace Problems in Lombard, IL?

Short-cycling is when your furnace turns off and on again a few minutes later. This prevents proper heating of your Lombard, IL home, but it also raises your heating expenses and leads to additional repairs. Check out some common causes of short-cycling and what you may be able to do about it.

Restricted Airflow

Your heater depends on air moving through it to heat your home properly. Heat builds up in the furnace when less air moves through the system, triggering a safety shutoff.

To prevent this, change your filters according to your manufacturer’s recommended schedule. Also, be sure your vents are open and have at least a 2-inch clearance around them. Finally, make sure to schedule routine furnace maintenance to prevent any internal restrictions, such as at the circulating fan.

Oversized Furnace

You might think that a larger heater would more effectively heat your home. However, its greater size means that the furnace produces more heat at once. If it cannot move that heat out, it has the same effect as restricted airflow.

Clogged Flue

Many things can happen to clog your furnace flue, including physical obstructions like birds and pests. However, it could also be that your damper isn’t open far enough, preventing the exhaust from venting. It’s best to have a professional investigate the cause of flue problems, which may require climbing on your roof.

Faulty Flame Sensor

The flame sensor is responsible for making sure the fuel is burning inside the heater. If your flame sensor is faulty or even dirty, it could cause your furnace to shut down prematurely.

Since this is an internal component to the furnace, it’s best left to a professional to troubleshoot and fix. The best prevention is routine maintenance, during which a service technician will clean and test the sensor to ensure it’s working properly.

Don’t wait for smaller heater issues to balloon into a catastrophic failure. Call to schedule your furnace repair appointment with one of the highly rated service technicians at Bogdan Company.

Image provided by iStock

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