Heater Disassembly & Reassembly - Osburn Cordova Series Installation And Operating Instructions Manual

If necessary, the Fan Thermal Switch may be replaced as follows:
1. Turn off all electrical power to the insert; unplug power cord or turn circuit breaker off.
2. Remove the four screws which locate the lower grille assembly, and remove it.
3. Remove the shield by removing two screws (see Figure 26).
4. Remove the fan thermal switch mount bracket by loosening two screws but do not remove them.
5. Disconnect the two wires from the switch.
6. Remove the two screws securing the switch.
7. Remove and replace the thermal switch.
8. Reassemble in the reverse order.
4.8 Heater Disassembly & Reassembly
f i r e - p a r t s . c o m
The following procedure is to be performed by qualified service personnel ONLY.
Turn off the gas supply and allow the heater to cool for up to 30 min.
1 Remove the top grille assembly.
2 Remove the door.
3 Remove the lower grille assembly.
4 Remove the logs and coals.
5 Remove the burner tray assembly as a unit by lifting it up and out.
6 Undo the gas flexline connection at the gas valve. These fittings are flared and do not require sealant.
7 Remove the screw securing the pilot assembly to the pilot bracket.
8 Remove the four screws securing the pilot cover plate and gasket & then remove them.
9 Remove the nut securing the orifice to the firebox bottom.
10. Remove the four screws holding the valve bracket to the firebox bottom.
11. Disconnect the thermostat wires from the valve. Once the fasteners are removed, the valve/pilot
assembly can be lowered down and rotated out through the front of the appliance as a complete unit.
12. Reassemble the components in reverse order.
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