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Common Furnace Problems


The conventional gas furnace is one of the most common heating systems used across the country. These bad boys will heat your home efficiently at an affordable rate. However, like all heating systems, they will run into a problem from time to time.

No Heat Is Produced
When the furnace is not producing any heat, head to the thermostat and check to see if a high enough temperature is set and that it’s working properly. If this unit is working properly then check the pilot light and gas valve. The pilot light should be constantly burning without flickering, and the gas valve should be fully open.

A Small Amount of Heat Is Produced
If there’s heat coming out of the vents, but not enough, then a little maintenance should fix this problem. First check the air filter to see how dirty it is and if it needs to be replaced. Afterwards, look at the gas burners and see how they look. If they’re dirty or out of alignment then you should clean and adjust them.

The Furnace Turns On & Off Too Often
The furnace will turn on and off throughout the day to keep a constant temperature in the home. This is normal — but not if this happens multiple times in a matter of minutes. As always, check the condition of the air filter before anything else. Proceed to open up the furnace and begin oiling the blower motor so it is nicely lubricated. Also, check the condition of the belt and replace it if it’s cracked or worn. If the belt is good, but it’s too tight, loosen it so it can be pulled an inch in either direction.

Knowing what causes common furnace problems can help you diagnose what is wrong with your heating system. When you need the help of a pro, head to the phone and contact the experts at Tri-City Appliance, Heating & Cooling. To learn more, or to schedule a service, give us a call at (203) 303-5700.