Furnace Pilot Light Won T Stay Lit Thermocouple

Valve coil 121 ohms.

Furnace pilot light won t stay lit thermocouple.

Pilot lit on gas furnace but the burners won t light. 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. Be sure everything has cooled down before realigning the thermocouple and pilot light. 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. Flame on pilot light does not hit 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. Troubleshooting this issue may be helpful in determining the source of the problem and helping users identify a potential resolution.

Thermocouple produces 20 mv. Gas water heater pilot wont stay lit even after replacing the 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. Pilot light won t stay lit after releasing bypass button.

Thermocouples detect pilot lights by sensing the heat they produce. If it determines that the pilot light is off it shuts down the flow of gas. The thermocouple detects the pilot light via sensors. 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 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 your furnace s pilot light won t stay on the furnace won t work. Some common causes include issues with the thermocouple and pilot tube.