Fan Motor; Air Proving Switch - L.B.White TS350 Manual Del Usuario E Instrucciones

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Premier Ductable Heaters

Fan Motor

1. Remove the belt guard.
2. Remove the fan belt.
3. Remove the four bolts and washers from the motor
mount fl anges. See Fig.19.
FIG. 19
4. Open the electrical access panel on the motor and
disconnect the motor wiring. See Fig. 20.
FIG. 20
5. Remove the motor pulley from the motor shaft.
• When reinstalling the motor, ensure the motor
pully is fl ush to the shaft end of the motor.
Owner's Manual • Premier 350

Air Proving Switch

1. The air proving switch is located on the the side panel
of the fan housing, adjacent to the fan motor, inside the
louvered door end of the heater.
2. Remove the screws that secure the switch bracket to
the fan housing panel and turn switch assembly so the
paddle on the switch arm can be pulled through oblong
hole on side of fan housing. See Fig. 21.
3. Disconnect the leads from the air proving switch.
FIG. 21
Oblong Hole
If the air proving 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.