SERVICING
S-1
CHECKING VOLTAGE ..........................................................................................................................35
S-2
CHECKING WIRING .............................................................................................................................35
THERMOSTAT AND WIRING ...............................................................................................................35
HEATING ANTICIPATOR ......................................................................................................................35
S-4
S-200
CHECKING DUCT STATIC ...................................................................................................................37
S-201
CHECKING TEMPERATURE RISE .....................................................................................................37
S-300
S-302
S-303
S-304
S-305
CHECKING MAIN BURNERS ..............................................................................................................40
S-306
CHECKING ORIFICES .........................................................................................................................40
S-307
CHECKING GAS PRESSURE ..............................................................................................................41
S-308
S-309
CHECKING FOR FLASHBACK ............................................................................................................43
S-310
CHECKING PRESSURE SWITCH .......................................................................................................43
S-311
S-312
S-313
S-314
CHECKING FLAME SENSOR ............................................................................................................46
SERVICE NUMBERS
31