How To Light Pilot Light On Furnace

When to call in a professional.

How to light pilot light on furnace. The furnace pilot light is a small burner that s used to keep the larger furnace burners going. If you follow these steps to light a pilot light and still have trouble keeping your heat on and the pilot light lit it is time to call in a professional hvac system maintenance company to investigate the problem. An older gas furnace has a standing pilot that stays on all the time or at least it s supposed to. One end of the thermocouple is attached to the pilot valve body while the other end which contains the.

A modern gas furnace usually has an electronic spark generator to ignite the gas when the thermostat calls for heat. A number of things can make an old furnace pilot light go out including a strong draft a faulty thermocouple or a loss of gas. To light a pilot light first turn the gas control valve to off and wait 5 to 10 minutes until all the gas fumes are gone. A pilot light going out can be inconvenient because it will completely cripple your furnace.

If your furnace system is 10 years or older there s a good chance that is only an 80 afue furnace and has a standing pilot light that needs to remain lit at all times. It s dependent on the thermocouple which opens the gas valve. Once you ve made sure there s no gas coming out hold a lit barbecue lighter or long match next to the pilot light tube inside your furnace while turning the gas control knob to pilot. This one covers how to light the pilot on the gas furnace.

This video is part of the heating and cooling series of training videos made to accompany my websi. The thermocouple is a metal case that contains metal wires welded together. In this episode of repair and replace vance shows how to relight the pilot light in a standing pilot furnace. If your pilot light goes out all you need to.

For better or worse a pilot light extinguishing isn t all that uncommon as even a light breeze or draft of air is enough to kill the tiny flame. A gas furnace s standing pilot in which the flame is lit at all times is sometimes referred to as a pilot light but no matter what you call it its purpose is to serve as a small ignition flame for the gas burner when the thermostat signals for gas to be delivered from the gas valve to the burner it is the standing pilot that ignites the gas flowing to the burners to heat the air in the.