10
Blower Assembly
The front grill and top of the insert must be removed to service the blower assembly. Refer to Figure 1 and
Figure 2. Lift the top off but leave the touch pad and temperature pot plugged in, be careful not to short
circuit against the insert casing. Rest the top on the casing so that the touch keypad points straight up.
Insolate the touch keypad from the casing with cardboard. With 120vac cord plugged in, turn the insert
on via the touch keypad. Next select low on the touch keypad, the blower should start running. If it
doesn’t slightly tap the blower with a screw driver, if unit starts then the problem is a sticky blower. If
the blower doesn’t start, take a voltage reading from the main control board. There should be 120vac
between terminal FAN and AC-N2. Refer to Figure 11. If there isn’t 120vac present then the main control
board is defective, replace with a new board.
Figure 10, Blower/Heater assembly
If the problem is a sticky blower, the blower must be replaced.
First with power removed, remove the heat discharge vent from
the insert. There are 4 screws, 2 located on each side, remove
all 4 and lift straight off. Next remove all wiring associated
with the blower motor, heat element and fusible link. The
blower motor has 2 black wires which are landed on terminals
FAN and AC-N2 of the main control board. Remove these.
Refer to Figure 11.
AC-N2
FAN
Figure 11, blower motor terminals
Blower
Blower Motor
2 stage infrared heating elements
Fusible link
Heat discharge vent
