I have a Dovre gas fireplace. The Pilot flame will not stay lit and appears to be too low and is not hitting the Thermocouple. I tried to adjust the flame higher using the adjustment screw on the gas valve but the flame did not increase. The pilot light is blue in color, and is about 3/4" long. Does this mean the gas valve needs to be replace since I can not get a bigger pilot flame to hit the thermocouple properly? Or is there a way to move the thermocouple closer to the pilot light so it is within the flame?