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MOTOR
1. With the heater on its side, remove access panel.
2. Access the ground screw through the underside of
the heater base. Remove ground screw. Disconnect
the green motor wire and the green power cord wire
from the underside of the shell (see Figure 5).
3. Remove two black wires from motor to terminal
board.
4. Carefully push the motor wires through the hole in
the bottom of the shell.
5. Use a nut-driver to remove the three screws holding
the motor mount to the shell (see Figure 5).
6. Carefully pull motor and fan out of shell.
Be careful not to damage fan. Do not
set motor and fan down with the weight resting on
fan. This could damage fan pitch.
7. Use a hex wrench to loosen the set screw, which
holds the fan to motor shaft (see Figure 6). Remove
fan, taking care not to damage the fan blade pitch.
8. Use a nut-driver to remove the two nuts
that attach
the motor to the motor mount.
9. Discard the old motor.
10. Attach the new motor to the motor mount with two
nuts. Tighten nuts rmly.
11. Place the fan onto the new motor shaft, making
sure the set screw contacts the at surface on the
motor shaft. Tighten set screw rmly (40-50 inch-
pounds [46.08-57.60 kilogram- centimeters]).
12. Carefully route the motor wires through the hole
in the shell. Place the motor, motor mount and fan
guard into rear of heater shell (see Figure 5).
13. Insert three screws through the heater shell and
into the fan guard (see Figure 5). Firmly tighten
the screws.
ELECTRICAL SYSTEM
The entire electrical system for this heater is contained within the motor. If any part of the electrical system is
damaged, you must replace the motor.
BGA1601
SERVICE PROCEDURES
WARNING:
Page 8 / 13
Figure 5 - Removing Motor and Fan
Guard from Heater (heater may vary
from illustration)
Screw
Screw
Motor and
Fan Guard
Figure 6 - Fan, Motor Shaft
and Set Screw Location
Motor Shaft
Fan
Set Screw
1/2021
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