My natural gas fireplace has a mind of it's own.
It has been working properly until today–it decided to come on by itself
It has been cold (15 degrees) here in SC–could this be the problem??
The pilot remains on and seems to be find.
My service man came and disconnected the control valve from it's electrical source and the fireplace remained on–strange at best.
Finally disconnected all wires to control valve and fireplace went off.
Best Answer
Some gas fireplaces with electric start have a thermopile that generates enough electricity to keep the valve open, even if you disconnect the mains electricity. So if the fireplace was on already and you disconnect the main power, I would expect the fire to stay on.
However, starting by itself is not a good thing. I would look at two components: the control board the the thermopile and solenoid connect to, or the remote control receiver. If you do have a remote control receiver, it's easy to eliminate that as the problem because you can just disconnect it. Otherwise, just replace the control board.