Wall Furnace Pilot Light Will Not Stay Lit

Without this device your furnace would simply continue to allow gas to flow into your home even when the pilot light was out.

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. When the pilot on your wall furnace does not stay lit your furnace won t heat. If the pilot light will not stay lit it needs to be fixed asap to supply heat to your home and for safety reasons. If your furnace s pilot light won t stay on the furnace won t work.

The flame sensor tells your furnace that the gas is lit. This started occurring after i did some gas plumbing and had to relight the pilot. Poor flame sensor. A faulty thermocouple may arbitrarily determine that the light is off when you want it on and vice versa.

The pilot won t stay lit on my furnace when i release the button it just goes out. If it determines that the pilot light is off it shuts down the flow of gas. It may try a few times before giving up altogether. An operational pilot light in your furnace means safety from the possibility of a gas leak.

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. 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 thermocouple detects the pilot light via sensors.

You see your furnace light the pilot when your thermostat calls for heat but then it quickly shuts off without lighting the burner. I ve used this furnace for over 15 years without replacing the thermocouple. The thermocouple is the copper rod the pilot flame directly hits. Flame sensors can go bad and occasionally need to be replaced.

This pilot light may not always stay lit due to a variety of issues that may affect the gas supply or ignitor. A number of reasons can cause the wall furnace to not light including a damaged thermocouple a clogged pilot. Pilot light won t stay on. Thermocouples detect pilot lights by sensing the heat they produce.

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. If your pilot light won t stay lit the thermocouple is very likely the culprit.