Furnace Pilot Light Won T Stay Lit Thermocouple

Troubleshooting this issue may be helpful in determining the source of the problem and helping users identify a potential resolution.

Furnace pilot light won t stay lit thermocouple.

Thermocouples detect pilot lights by sensing the heat they produce. 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. 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. Pilot lit on gas furnace but the burners won t light.

Gas water heater pilot wont stay lit even after replacing the thermocouple. Valve coil 121 ohms. Some common causes include issues with the thermocouple and pilot tube. Flame on pilot light does not hit thermocouple.

If your pilot light won t stay lit the thermocouple is very likely the culprit. 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. Thermocouple produces 20 mv. Pilot light won t stay lit after releasing bypass button.

A faulty thermocouple may arbitrarily determine that the light is off when you want it on and vice versa. The pilot lights but won t stay lit if a water heater pilot won t light at all the thermocouple probably isn t the problem. If it determines that the pilot light is off it shuts down the flow of gas. The thermocouple detects the pilot light via sensors.

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. This pilot light may not always stay lit due to a variety of issues that may affect the gas supply or ignitor. Be sure everything has cooled down before realigning the thermocouple and pilot light.