furnace technician to check pilot light

3 Reasons for a Failing Pilot Light in Florence, KY

March 1, 2022

Your gas furnace has a small tube that emits gas, which, once lit, produces a blue flame called the pilot light; this ignites the gas that another valve releases whenever you turn the system on. Here in Florence, KY, we receive calls from homeowners who complain that their light has gone out. Below, we give some of the most common reasons why the pilot light on a gas furnace can fail.

Malfunctioning Thermocouple

The thermocouple, a device over the pilot light that generates electricity and heat, regulates the gas supply, cutting it off if it senses that the light has gone out. To be accurate, though, the thermocouple must stay clean; we’ve found dirty thermocouples to cause a great many pilot light problems. Misaligned or damaged thermocouples may also cause them.

Dirty Vents and Filter

Lack of airflow through the vents can have an adverse effect on furnace performance. After all, you need oxygen to maintain a flame, and if the vents or filter have become clogged with dirt and dust, the debris cuts off this crucial supply of oxygen. Maintenance usually covers filter replacement/cleaning.

Issue With the Gas Regulator

Maybe the issue lies outside of the furnace and outside of your home altogether. Your gas regulator, which supplies gas to all your gas appliances, may be struggling with something preventing it from sending sufficient gas to the pilot light tube. If you own a gas oven that has been malfunctioning alongside your furnace, the regulator might be the answer.

Serving Homeowners Since 1981

Call Western Hills Heating and Air Conditioning, Inc., today to schedule a convenient heating repair appointment in Florence. Whatever the problem is with your pilot light, you’ll get the expert work of NATE-certified technicians combined with the warm, friendly care of a family-owned and -operated company.

Image provided by iStock

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