Sunheat Thermal Wave F15, Repair Manual, Page: 11 / 22

F
How To Replace High Limit Switch
!! Unplug The Heater Before Servicing!!
(Remember That The Edges Of the Metal Are Sharp. Use Caution)
The High Limit Switch is located on the right side (by the display screen) of the heat exchanger
box. Remove the 1 anchor screw that holds the High Limit Switch in place. Remove the 2 wire
leads from the old switch and replace. They attach to WK-1 and WK-2 on the circuit board.
High Limit Switch
Wire Leads
Anchor Screw