Wall Furnace Pilot Light Will Not Stay Lit

The thermocouple is the copper rod the pilot flame directly hits.

Wall furnace pilot light will not stay lit.

Furnaces of various kinds are gas powered and use a pilot light to supply heat to the unit including standard home furnaces and floor furnaces. Thermocouples detect pilot lights by sensing the heat they produce. If your furnace s pilot light won t stay on the furnace won t work. This started occurring after i did some gas plumbing and had to relight the pilot.

If your pilot light won t stay lit the thermocouple is very likely the culprit. Check the thermocouple your furnace s thermocouple if it works normally checks to see whether the pilot light is on or off. Some common causes include issues with the thermocouple and pilot tube. The pilot won t stay lit on my furnace when i release the button it just goes out.

I ve used this furnace for over 15 years without replacing the thermocouple. The flame sensor tells your furnace that the gas is lit. You see your furnace light the pilot when your thermostat calls for heat but then it quickly shuts off without lighting the burner. This pilot light may not always stay lit due to a variety of issues that may affect the gas supply or ignitor.

Pilot light won t stay on. If the pilot light will not stay lit it needs to be fixed asap to supply heat to your home and for safety reasons. There are numerous things that may make the pilot light on your furnace to not stay lit. Read on for reasons why and what you can do to fix it.

The thermocouple detects the pilot light via sensors. An operational pilot light in your furnace means safety from the possibility of a gas leak. In this hvac training video i show up close how the thermocouple pilot light and gas valve work on a water heater furnace fireplace as well as other ap. A faulty thermocouple may arbitrarily determine that the light is off when you want it on and vice versa.

It may try a few times before giving up altogether. Poor flame sensor. When my pilot light wouldn t stay lit on my furnace i asked a few plumber buddies about the symptoms and they both said it was the thermo couple. Flame sensors can go bad and occasionally need to be replaced.

If it determines that the pilot light is off it shuts down the flow of gas. I suspected the thermocouple and replaced it but this didn t fix the problem.