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.

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. Some common causes include issues with the thermocouple and pilot tube. If it determines that the pilot light is off it shuts down the flow of gas.

If your pilot light won t stay lit the thermocouple is very likely the culprit. Gas water heater pilot wont stay lit even after replacing the thermocouple. 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. Thermocouple produces 20 mv.

Flame on pilot light does not hit thermocouple. 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. 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 the pilot light is not aimed correctly simply bend the thermocouple to line it up with the pilot tube.

If your furnace s pilot light won t stay on the furnace won t work. 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. Pilot light won t stay lit after releasing bypass button. 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.

Valve coil 121 ohms. The thermocouple detects the pilot light via sensors. Thermocouples detect pilot lights by sensing the heat they produce.