Furnace Pilot Light Won T Stay Lit Thermocouple

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.

Furnace pilot light won t stay lit thermocouple.

Thermocouple produces 20 mv. If your furnace s pilot light won t stay on the furnace won t work. Be sure everything has cooled down before realigning the thermocouple and pilot light. When your pilot light will not stay lit for more than a few moments turn the pilot light on and be sure it is aimed at the thermocouple.

A faulty thermocouple may arbitrarily determine that the light is off when you want it on and vice versa. Flame on pilot light does not hit thermocouple. The procedure for lighting a standing pilot always includes lighting the flame then manually holding in the gas valve to keep the flame burning and give the thermocouple time to heat up. The thermocouple detects the pilot light via sensors.

If it determines that the pilot light is off it shuts down the flow of gas. Valve coil 121 ohms. If the pilot light is not aimed correctly simply bend the thermocouple to line it up with the pilot tube. Gas water heater pilot wont stay lit even after replacing the thermocouple.

This pilot light may not always stay lit due to a variety of issues that may affect the gas supply or ignitor. While this is an excellent safety feature a faulty thermocouple may decide arbitrarily that your pilot light is off when you want it on shutting down your pilot light and your furnace. Thermocouples detect pilot lights by sensing the heat they produce. Pilot lit on gas furnace but the burners won t light.

Troubleshooting this issue may be helpful in determining the source of the problem and helping users identify a potential resolution. Pilot light won t stay lit after releasing bypass button. If your pilot light won t stay lit the thermocouple is very likely the culprit.