Need to replace fan switch, but don't see what I have to do to lift up the glass top to gain access to the switch. The only screws I can see are on the sides of the plenum, but removing them doesn't loosen the top.
To remove the top to replace the switch, the unit will need to be pull from installation. Once out of installation there will be screws around the perimeter of the burner box that holds the top in place. Remove the screws and lift the top.