6
SERVICE PROCEDURES
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.
UPPER SHELL REMOVAL
1.Remove screws along each side of heater using 5/16"
2.Lift or slide upper shell off.
3.Remove fan guard.
FAN
IMPORTANT: Remove fan from motor shaft before removing motor from heater. The weight of the motor resting on the fan could damage the fan pitch.
1.Remove upper shell (see above).
2.Use 1/8" hex wrench to loosen setscrew which holds fan to motor shaft.
3.Slip fan off motor shaft.
4.Clean fan using soft cloth moistened with kerosene or solvent.
5.Dry fan thoroughly.
6.Replace fan on motor shaft. Make sure setscrew is touching back of flat surface on motor shaft (see Figure 8).
7.Place setscrew on flat of shaft. Tighten setscrew firmly
8.Replace fan guard andupper shell.
IGNITOR
Make sure gap between ignitor electrode and burner nozzle is .13/.15". Access ignitor electrode from inside combustion chamber. No other maintenance is needed for ignitor.
Figure 5 - Upper Shell Removal
Motor
Fan
Figure 6 - Fan Removal
Fan
Setscrew
Motor shaft
Figure 7 - Fan, Motor Shaft, and Setscrew Location
Fan
Hub
Motor
Shaft
Setscrew
FAN CROSS SECTION |
Figure 8 - Fan Cross Section
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