thermo snap switch won't turn blower on
I just installed a lennox fbk 250 blower kit in my gas fireplace. the thermosnap switch won't turn on the blower. i thought the switch was malfunctioning so i placed a lighter flame on it and the thermo snap switch did turn on the blower. however when i adjust the switch to touch the bottom of the firebox, it seems the bottom is very warm but not hot to the point i cannot keep my hands on it. it seems the bottom of the firebox is not getting hot enough to activate the thermoswitch. this is after 1-2 hrs of the gas fireplace being on. does the fireplace burner need to be adjusted so the bottom gets hot enough? what type of adjustments can be made? the flame pattern seems to be ok as per the instruction manual. it is set to high on the flame height. sorry for the long explaination. any help is appreciated.