Fan Motor; Air Pressure Switch - L.B. White Premier 350 DF Guide Du Propriétaire

Fan Motor

1. Remove the belt guard.
2. Remove the fan belt.
3. Remove the four bolts and washers from
the motor mount flanges. See Fig.20.
FIG. 20
4. Open the electrical access panel on the motor and
disconnect the motor wiring. See Fig. 21.
FIG. 21
5. Remove the motor pulley from the motor shaft.
• When reinstalling the motor, ensure the motor
pully is flush to the shaft end of the motor.
Premier Ductable Heater

Air Pressure Switch

The air pressure switch is located on the side of the fan
housing, to the right of the fan motor, inside the louvered
door. See Fig. 22.
FIG. 22
1. Disconnect the electrical leads from the air pressure
switch.
2. Remove the clear tubes from the air pressure switch.
3. Remove the screws that secure the switch bracket to
the fan housing panel.
If the air pressure switch contacts are closed on a call
for heat before the fan motor starts, or do not close after
the fan motor starts, the igniter will not spark nor will the
gas valve open.
Owner's Manual • Premier 350DF 2.0
19
Air pressure
switch