no pilot light

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Old 11-16-06, 11:20 PM
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no pilot light

I have a Nordyne/Intertherm propane furnace. I believe it is original to the house which was "built" in 1990. I went to light the pilot light a couple weeks ago and I cant get it to light at all. I took the small copper line off the top of the gas valve(which I assume is for the pilot); I turned the black knob to the pilot position and pushed down. No gas came out of the hole. I put the line back on and repeated this test for the slightly larger silver line coming out of the side of the valve body and this time when I pushed down gas came out.
I dont know a thing about furnaces and/or propane so does the gas valve need to be replaced? If so is this something I can do myself or do I need to hire someone to make sure the pressure is correct.
If it helps the furnace is model MGH-075ABWN-06
The valve body says model 36C67 Type 176
 
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Old 11-17-06, 03:07 PM
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Sounds like the first line you removed was the thermocouple. The 2nd was the pilot line. Follow both lines and you will find the pilot. With the control knob in pilot position , push the knob down(im assuming this model you depress) and light the pilot. Hold down for 30-40 seconds and then release. Pilot should stay on unless there is a problem. Put knob back to "on" position and turn on thermostat.
 
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Old 11-17-06, 03:44 PM
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Wink

If it didnt light and no gas to the pilot take it out and clean it. Main thing is to clean the venturi around the pilot dont use a needle to try and clean out the gas holes in the pilot orifice. Put a new T/C on while you have it out. Thats the small copper line
 
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Old 11-19-06, 11:42 AM
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thnx for the info guys; i love learning new stuff. I couldnt get the pilot to light at all so i managed to get the pilot body out with all the lines still attached to it and the gas control. The small copper line is indeed the thermocouple and the gray metal line is the pilot tube. I removed the pilot tube and blew air through it; no blockage there. I tried blowing air through the bottom of the pilot body but no air would come through to the top that i could tell. So i'm guessing the small shiny metal piece still in the pilot body is the orifice. How do I clean it out or should I just replace it? And if I replace it how do I get it out of the pilot body? On the top side of the body is a metal shield that looks like it protects the pilot flame or perhaps directs the heat from the pilot flame toward the thermocouple. I cant see how to get this thing out of the pilot body.
thnx for the help
 
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Old 11-19-06, 03:03 PM
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i guess i managed to clear whatever obstruction because when i shine a light through the top of the pilot I can see light coming through a tiny tiny tiny little hole in the middle of the shiny metal thing(venturi?) I hooked the lines back up, checked for leaks and what do ya know the thing works now. I didnt realize the hole for the pilot was so small. Anyway thanks for the help....it saved a lot of money for a service call.
 
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