If your furnace is not keeping you warm during the cold Bloomington, IL winters, the problem may be the ignition system. Furnace ignition malfunctions can create many problems, including furnace shut down, poor heating, and emission of toxic gases. If you think the ignition on your furnace is not working properly, there are several ways to troubleshoot the problem. If troubleshooting doesn’t work, call a heating, ventilation, and air conditioning professional for heating system repairs.

Short Cycling

If your furnace shuts down quickly after it comes on, it is short cycling. Although several issues can cause this to happen, a bad flame sensor may be the problem. A flame sensor ensures that the furnace has fired up. When there is no ignition, the flame sensor does not work, and the furnace shuts off.

No Pilot Light

If your furnace has a pilot light, make sure it is lit. If it is not, turn off the power to the furnace. Follow the instructions on the unit to relight the pilot. If it will not stay on, the thermocouple may be damaged, the opening to the pilot may be clogged, or the safety cutoff valve may be malfunctioning. Call a certified HVAC company to investigate.

Electronic Ignition Failure

Turn off the power to the furnace to reset the ignition. If it does not come on, the flame sensor may be clogged. Although cleaning a flame sensor is not complicated, handling it improperly can damage it. Your HVAC contractor knows how to clean this element without damaging it.

Toxic Gases

If your gas or oil furnace is not working properly, it may be emitting toxic gas. Carbon monoxide is a byproduct of combustion. It is odorless and colorless. If it enters your living space, it can make you sick or be fatal. When your HVAC contractor repairs your furnace, ask the technician to check for gases and install a carbon monoxide alarm.

The certified technicians of Custom Air Company of Bloomington, IL are available 24 hours a day to troubleshoot your furnace. For new installations, maintenance, or heating system repairs, call (309) 518-1196.

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