SERVICE PROCEDURES
Motor
1.Access ground screw through underside of heater base. Remove ground screw. Disconnect the green motor wire and the green power cord wire from underside of shell (see Figure 6).
2.Remove blue, white, and yellow motor wires from terminal board (see Figure 6).
3.Remove two wire guard screws. Remove wire guard.
4.Set heater on its base. Remove three screws that attach fan guard to heater shell (see Figure 7).
5.Remove motor and fan guard from heater shell. Carefully pull the motor wires from hole in shell (see Figure 7).
6.Use 3.17 mm (1/8") Allen wrench to loosen set- screws which hold fan to motor shaft (see Figure 8).
7.Remove fan. Be careful not to damage the fan blade pitch.
8.Use nut driver to remove three nuts that attach fan guard to motor. Remove fan guard from motor (see Fig- ure 9).
9.Discard old motor.
10.Attach fan guard to new motor with three nuts. Tighten nuts firmly.
11.Place fan onto motor shaft of new motor.
IMPORTANT: When plac- ing fan onto motor shaft, make sure fan hub in posi- tioned away from motor body (see Figure 8). Make sure setscrews are touching back of flat surfaces on motor shaft. Tighten set- screws firmly
Continued
WARNING
Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and elec- trical shock can occur.
Ground Screw
Wire Guard Screws
Wire Guard
Underside of Heater Base
Terminal Board
Figure 6 - Location of Ground Screw and Wire Guard
Fan Guard Screw
Fan Guard
Hole in Shell for Wires
Figure 7 - Removing Motor and Fan Guard from Heater
Set- screws
Fan Hub
| Motor Wires |
Figure 8 - Removing or Attaching | Figure 9 - Removing or Attaching |
Fan from Motor Shaft | Fan Guard from Motor |
11
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