4 Reasons Your Gas Furnace’s Pilot Light Keeps Blowing Out

You count on your heating system for comfort when the temperatures drop outside in VA. If your furnace isn’t working correctly, the first thing to check is the pilot light. If your pilot light isn’t staying lit, there could be several reasons for it.

Gas Flow Problems

If your furnace is providing no heat or too little heat, it may be the result of a gas supply problem. Check the pilot light’s color. An efficiently burning pilot light will burn bright blue with a yellow tip, while a yellow or flickering flame is an indicator of a problem.

If your pilot light is not burning strong, it’s time to call a professional for a service call. Faulty pressure regulators, damaged gas lines and other issues may cause gas flow problems that need the proper skills to resolve.

Faulty Thermocouple

The thermocouple shuts down the gas supply in the event that the pilot light goes out. A faulty thermocouple may shut down the gas when the pilot light is burning, causing it to extinguish. Dirty and misaligned thermocouples may produce the same problem.

Dirty Intake Valve

Dirt may accumulate on the intake valve. When this happens, it causes a reduction of oxygen supply, resulting in a weak-burning light that may not stay lit.


If your pilot light is burning a strong blue and is easily re-lit but goes out again at random times, the problem may be a draft. Check for open windows, doors or any other way air may get into the room from outside.

Don’t leave gas furnace repairs and maintenance to chance or try to take it on yourself. Reach out to Atlantic Shores Heating and Cooling to schedule an appointment for furnace service today. One of our friendly, professional service technicians will ensure your furnace is in great condition to keep you warm through the rest of the winter.

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