Starting a new thread instead of tacking on to
my situation is a little different.
I have a Heatalator gas fireplace. I dont know the model number off hand.
It has a standing pilot, no blower, direct vent (horizontal with one 45d el to termination just a few feet away). Its about 6 years old.
The fireplace lights with a low voltage wall switch, no thermostat or remote.
I haven't had any trouble with it until the last few times I used it.
The pilot lights fine and stays lit. When the switch is on the fireplace lights and will burn a while. After a few minutes it goes out (pilot is still lit), if I don't do anything it will re-light the flames and burn a while more but then go off again. I haven't timed these cycles but it will keep cycling on and off for as long as the switch is in the on position.
Google is frustrating me while searching for a solution do to the vast number of "pilot wont stay lit" questions and posts on the net. That's not my problem.
When the fireplace is lit it seems normal.
I suspect a dirty something (thermocouple?) Suggestions as to where to start troubleshooting?