SERVICE PROCEDURES
7
SERVICE PROCEDURES
WARNING: Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and electrical shock can occur.
Transformer
GroundGreen Lead
Screw
MOTOR
1. | With heater on its side, remove base tray. |
2. | Access ground screw through underside of heater base. Re- |
| move ground screw. Disconnect the green motor wire and the |
Motor
Green
Lead
Power Cord Green Lead
| green power cord wire from underside of shell (see Figure 5). |
3. | Remove black and white motor wires from terminal board (see |
| Figure 5). |
4. | Carefully push motor wires through hole in bottom of shell. |
5. | Remove screws holding motor mount to shell. Use |
| (see Figure 6). |
6. | Carefully pull motor and fan out of shell. IMPORTANT: 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 hex wrench to loosen setscrew which holds fan to motor |
| shaft. |
8. | Remove fan. Be careful not to damage the fan blade pitch. |
9. | Use nut driver to remove two nuts that attach motor to mo- |
| tor mount. |
10. | Discard old motor. |
11. | Attach motor to motor mount with two nuts. Tighten nuts firmly. |
12. | Replace fan on motor shaft. Make sure set screw contacts flat |
| surface on motor shaft. |
13. | Tighten set screw firmly |
14. | Carefully route motor wires through hole in shell (see Figure 7). |
| Place motor, motor mount, and fan guard into rear of heater shell. |
15. | Insert screws through heater shell and into motor mount. |
| Tighten screws firmly. |
16. | Turn heater on its side to access opening in bottom of base. |
| Connect green wires from motor, transformer, and power cord |
| to heater shell using ground nut (see Figure 5). |
17. | Attach black and white wires to terminal board (see Wiring |
| Diagram, page 9, for correct locations) . |
18. | Replace base tray. |
Terminal
Board
Figure 5 - Location of Ground Screw
Motor
Mount
Screw
| Fan |
| Guard |
| Motor |
Hole in Shell | Mount |
for Wires |
|
Figure 6 - Removing Motor, Motor Mount, and Fan Guard from Heater
Hole in
Shell for
Wires
Figure 7 - Replacing Motor, Motor Mount, and Fan Guard into
Heater
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