Question about Heating & Cooling
SOURCE: pilot light will not stay lit
The flame must satisfy the thermocouple. Then the thermocouple must satisfy the valve. If you have a great flame on the thermocouple, it is possible that you have a bad gas valve, if no other saftey switches has you shut down to not allow the valve to open.
Posted on Nov 20, 2007
You may have one of two problems; The pilot orifice is very small and allows only a limited flow and any air trapped in the gas supply takes some time to bleed out while you are holding down the pilot button. Or the pilot orifice may be plugged in which case you would have to replace it.
Posted on Jul 10, 2008
SOURCE: the pilot light to our
Check venting, exhaust, the adj vent in fireplace. If that does not work your valve failed, warranty it. If no warranty expect to pay between 90 to 150 dollars.
Posted on Dec 05, 2008
SOURCE: Pilot on logs won't stay lit
Hold pilot button longer. if this doesn't work your Thermopile has gone bad and will not generate enough Millivolts to keep gas valve pilot open. A new thermopile will generate 750 millivolts. It cost less than $20 dollars but is difficult to replace. You should call a certified technician. They will charge you about $100.00
Posted on Oct 27, 2009
SOURCE: I have a Vermont Castings
From what you are showing and saying I would say that you have a bad gas valve... Your test B is the most telling in that it pulls the MV's down when you close the wall switch, but the gas valve does not open...this tells me that it is trying but the valve is not opening...
Now... the next problem will be to find that valve... from doing a very quick search, I believe that it is an OEM valve and probably will only be available from the manufacturer or a dealer...
So I would contact your dealer or Vermont castings and try to secure a new gas valve.
If it were a thermocouple problem the pilot would not stay lit...
One other test would be to bypass the wall switch and jumper the gas valve directly to make sure the wall switch is not the problem...
Posted on Nov 07, 2010
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