This needs to be done so it is not hot and is safe to open.
Furnace pilot light replacement.
Push in the knob and hold it in.
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 thermocouple is a gas furnace component located near the pilot light burner.
Honeywell white rodgers and other manufacturers make universal replacement thermocouples usually with 30 millivolt mv ratings for standing pilot furnaces.
Go to the furnace and find the pilot valve.
Locate this gas cock or knob.
Turn off the gas flowing to the furnace using the shutoff valve.
Open the gas valve on the supply line and turn the gas control knob to pilot.
First turn off the pilot light on your furnace.
If the knob won t go in fiddle with it until it does.
It will usually have a gas cock or valve knob that reads on pilot and off.
After waiting for 10 minutes use the following procedure to relight the pilot light.
If the pilot light won t stay lit the thermocouple may be faulty and should be adjusted or replaced.
Choose from silicon carbide and silicon nitride hot surface igniters with flat round and spiral tips.
It is a safety device that shuts off the gas if the pilot light goes out or the electric igniter fails.
Purchasing a replacement thermocouple or flame sensor purchase a replacement thermocouple or flame sensor that is compatible with your particular furnace model.
Shop here and find a variety of pilot and thermopile assemblies replacement thermocouples and more.
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106 products replace gas furnace pilot and ignition components with high quality parts from grainger.
Let your furnace cool down for 30 minutes.