OK guys, admittedly far froma pro. But i can change a therrmocouple.
I have a 2004 Desa gas fireplace using the 820 gas valve above.
Pilot will not stay lit and I replaced the thermopile as they are readily available.
OK, will search for a thermocouple. Ended up with a Direct Vent Fireplace Fine Thermocouple SIT 820 NOVA. Well, it doesn't fit. I twill not thread int the valve as it's too large. It was also a copper tube type. The exisitng T/C is a white insulation over a copper wire with an 8mm coarse thread fitting at the valve and a 4mm temperature probe.
Sounds simple right?
Well, where in the world do I get one?
I would never have thought that finding a thermocouple would turn into brain surgery!
Any assistance would be greatly appreciated!