Our fireplace turns on fine, runs for a while and then all of a sudden goes out, then sometimes comes back on. We usually turn it off when it happens. We have had a fireplace company out they replaced the thermocouple and it still continues. We have also had the fireplace cleaned, venting was resealed and it still continues. Our local fireplace company is stumped and we are too! We really enjoy using this and now I have turned it off as we don't know what's going on and don't feel safe using it till we know and fix it.
Best Answer
We have the same issue. There is a pilot light. Runs on LP. Pilot does not go out but the flames go out and then in a little bit it comes back on. No other light switches are being turned on/off and there is no battery in the unit. We found that when it is turned at a lower setting it happens far more often. But it will go from flames 8 inches high to off in 1 second and then after about 2-3 minutes it comes back on.
If we turn it to a higher setting the problem goes away and the fireplace stays lit. Because the pilot doesn't go out we know it's not air in the lines or a main regulator issue.