I cannot keep the pilot light going. It goes

Why Does My Gas Furnace Pilot Light Keep Going Out?

santafeair.com/blog/.../why-does-my-gas-furnace-pilot-light-keep-going-...
Jan 10, 2014 - The thermocouple is the copper rod you see the pilot flame hitting. It's a safety device that controls a small valve to shut off gas going to the pilot ...

i have an ole reznor in my garage been workiing for ten + years no problems , mine is gas , the pilot light does go out after it switches to main burner like ten seconds later , but does light back up when thermostat shuts main off ( i had to go look to make sure) not a real big flame maybe like an inch or so , has a spoon shaped air shield around it , maybe yoours is missing ?

Turn the gas valve off all the way, make sure you don't smell gas and wait an hour or so. The gas valve should have an on setting and a pilot light setting. Turn the gas valve to pilot light and you should be able to push the vlv button down. At this time hold a flame to the pilot light outlet. It should light and when it does keep holding the vlv down for about 15-30 seconds. IF you let off of the vlv and the pilot light goes out, you may have a faulty sensor. IF it stays lit when you let off the vlv. back your face away from the unit and turn the valve to the on position. Operate the cooker as usual making sure that the burner does indeed light when called for. If the pilot light will not stay lit, make sure the sensor is enveloped in the flame. If the flame is too small you may have to change or clean the pilot flame outlet. To replace the sensor, remove it from the mount by the pilot outlet(once it has cooled) then follow it back to the control valve and remove it useing a line wrench. YOu should be able to get one at the nearest hardware store.

pilot light keeps going out! more then likely its the thermal coupling doing this. if bad it shut all gas to heater for a safety measure. just shut power off, then turn gas off and replace it. then you should be ready to go. to relight heater hold down on gas vavle knob in the pilot position, hold down and light it at the coupling where gas comes out. when it is lit, continue to hold down for 60 seconds. release knob very slow. then if its lit, turn to the run position. if flme goes out, wait at least 5 minutes to expel the gas fumes and turn to pilot and try again. good-day !

If you have a standing pilot that wont stay lit and you have to keep relighting it, it can only be a couple of things that will do this.
1. Try tighting the thermocouple at the gas valve. (this is a thin copper line that goes from the gas valve and goes to the pilot light.)
2. Make sure that the tip of the thermocouple is in the pilot light flame.
3. Make sure that the thermocouple is clean.

if you have done these and it still doesnt stay lit, buy a new thermocouple.

check and or replace the thermal coupling. the coupling goes into the main gas control, if the coupling is bad it will shut off gas supply. as a safety measure.

I have the exact same model with the exact same problem. Did you ever figure out what the problem was? I just picked up a new gas valve, but maybe i should check the flame sensor first. In my systems case the electronic ignition fires, which lights the pilot, but it keeps firing even though the pilot light is lit. So I think it could be the flame sensor, how do I remedy that or check it out. I would like to check this out first before dropping in the gas valve, cause they arent cheap and I can still return it before its installed.

Either the pilot light orfice is dirty, and you will need to pull it out and clean it, or the thermocouple is bad. If the pilot goes out as soon as you let the button go then it is most likely the thermocouple. If the pilot stays lit for a few days or hours then you will need to clean the pilot orfice, heres how:
1 turn off the gas supply
2 unhook the main burner gas line from the thermostat, this is the line that goes to the burner
3 unhook the pilot supply line it is usually next to the main burner line
4 unhook the thermocouple from the thermostat
5 remove the burner assembly
6 take the orfice out of the pilot line and clean it out by blowing thru it, use an air compressor if needed.
7 reassemble and light pilot

there is a small adjustment screw on the gas valve,turn it clockwise to increase pilot,if that does not work the vent cap on the gas regulator on the back of the unit could be stopped up,remove that cap ,clean out or replace unit can operate without it just fine.If you increase the pilot and it still wont stay lit replace the thermocouple