Burner & Pilot Cleaning; Fan Replacement & Electrical Schematic - Osburn Cordova Series Installation And Operating Instructions Manual

4.6 Burner & Pilot Cleaning
Periodic cleaning is necessary for proper operation.
1. Refer to section 4.7, remove the burner and check that the burner orifice is clean.
2. Visually inspect the pilot. Brush or blow away any dust, lint or foreign debris. If the pilot orifice is
plugged, disassembly may be required to remove any foreign material from the orifice or tubing.
When the appliance is back in service, check the pilot flame pattern with the Figures in section
3.3.9.2. For relighting, refer to the lighting instructions in section 2.2.
4.7 Fan Replacement & Electrical Schematic
CAUTION: L
ABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS
ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION
AFTER SERVICING
1. Turn off all electrical power to the heater. Unplug fan cord or turn circuit breaker off.
2. Remove the four screws which locate the lower grille assembly, and remove it.
f i r e - p a r t s . c o m
3. Remove the two electrical shield screws and shield (see Figure 26).
4. Remove the two fan bracket to fan base securing screws (see Figure 27).
5. Remove the two fan bracket securing nuts (see Figure 28).
6. Remove the fan wire from the thermal switch.
7. Disconnect the remaining fan wire at the inline connector.
8. Remove the fan by first rotating it 90 degrees backwards, and then sliding it forward and out.
Figure 26
.
. W
IRING
. V
ERIFY PROPER OPERATION
Figure 27
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