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To Turn Off Gas to Appliance
1. Set the thermostat to lowest setting.
2. Turn off all electric power to the appliance if service is to be performed.
3. Open the access panel (Outer Door Assembly) to turn off the electric switch.
4. Close the control access panel (Outer Door Assembly).
Maintenance
See “Furnace Maintenance” in Chapter 7.
Ducting and Return Air
All heat discharges, registers and return air grills must be free and clear of obstructions.
Obstructions will prevent the furnace from performing correctly. This includes all
closable registers that are intended to reduce air flow, not shut it off completely.
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