A nonsense mutation in the leptin gene that results in a stop codon and lack of leptin production was first observed in mice in 1950. In the mouse gene, arginine-105 is encoded by CGA and only requires one nucleotide change to create the stop codon TGA.
The fuel pump relay, located deep inside the TIPM, is the most common relay to fail since it's powered on 100% of the time while you're driving. You likely found this website because your dealer wants to change your fuel pump ($600+) or TIPM ($1000+).
2) Locate the gas shut off valve (blue switch) leading to the fireplace. 3) Once you found the switch ensure this it is turned on, the switch should be parallel to the gas pipe or flex line. 4) Make sure that the main burner switch, thermostat or remote control is in the off position. 5) Check to make sure your pilot knob is in the off position, as indicated on the marker on the gas valve. 6) Push the pilot light in, and turn it counter clockwise to the pilot position. 7) Next push in the pilot knob and hold it in while repeatedly pressing the igniter button.