Furnace Pilot Light Won T Stay Lit Thermocouple

Thermocouple produces 20 mv.

Furnace pilot light won t stay lit 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. Some common causes include issues with the thermocouple and pilot tube. 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. If your furnace s pilot light won t stay on the furnace won t work.

Pilot lit on gas furnace but the burners won t light. Flame on pilot light does not hit thermocouple. Thermocouples detect pilot lights by sensing the heat they produce. If the pilot light is not aimed correctly simply bend the thermocouple to line it up with the pilot tube.

If it determines that the pilot light is off it shuts down the flow of gas. A faulty thermocouple may arbitrarily determine that the light is off when you want it on and vice versa. This pilot light may not always stay lit due to a variety of issues that may affect the gas supply or ignitor. If your pilot light won t stay lit the thermocouple is very likely the culprit.

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. Pilot light won t stay lit after releasing bypass button. 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.

Gas water heater pilot wont stay lit even after replacing the thermocouple. Troubleshooting this issue may be helpful in determining the source of the problem and helping users identify a potential resolution. Be sure everything has cooled down before realigning the thermocouple and pilot light.