Comfort Glow Gas Logs GLD1856T. Fire goes out after 20 to 60 minutes pilot stays lit
This was a new unit, I did not use for a year B4 the 1st time. I cleaned, I tried a new tank regulator, tried moving it forward. From reading it appears it is the thermopile that is safety device. I have turned fan on to see if it is fumes, I open doors. Any ideas?