When working properly, the pilot light in your fuel-fired furnace constantly burns a small amount of gas, ready to kick the heater into action when temperatures plummet. Here are three common problems that can make it impossible for the small flame to stay lit.
Dust and Debris
Dirt and neglect are the primary reasons for heating system failure. Older heating systems with continuous pilot lights require professional maintenance to operate safely and efficiently. Without regularly scheduled tune-ups, dust and dirt can block the flow of gas, making it impossible to keep the pilot light burning.
Thermocouple Trouble
The thermocouple is the component in your heating system that controls burner ignition. By generating and sending a small electrical voltage, it’s responsible for closing and opening the gas valve that supplies gas to the pilot light. A thermocouple that’s dirty, misshapen, or simply worn out can’t signal the gas valve to stay open. It takes the skill of an experienced HVAC technician to identify thermocouple trouble and rectify the problem.
Malfunctioning Gas Valve
Gas valves in furnaces are engineered to open when the thermostat calls for heat, then close again when the indoor environment reaches the set temperature. If the gas valve malfunctions, it might not deliver enough fuel to keep the pilot light or the burners aflame. This is one of several furnace repairs you shouldn’t do yourself. For safety’s sake, it’s critical to leave this repair in the hands of a qualified professional.
From emergency repairs to new installations, you can rely on the professionals at Air Specialists Heating & Air Conditioning for the professional furnace repair services you need when temperatures take a tumble tumble in Quincy, IL, and the surrounding area. Winter, spring, summer or fall, we’re dedicated to keeping the communities we serve comfortable regardless of what weather comes your way.
