46
SERVICING
SERVICE NUMBERS
S-1
CHECKING VOLTAGE ................................................................................................................................. 47
S-2
CHECKING WIRING .................................................................................................................................... 47
S-3A
THERMOSTAT AND WIRING ....................................................................................................................... 47
S-3B
HEATING ANTICIPATOR .............................................................................................................................. 47
S-4
CHECKING TRANSFORMER AND CONTROL CIRCUIT .............................................................................. 48
S-10
CAPACITANCE CHECK .............................................................................................................................. 48
S-15
CHECKING CAPACITOR ............................................................................................................................. 48
S-15A RESISTANCE CHECK.........................................................................................................................48
S-16 CHECKING AIR CIRCULATOR BLOWER MOTOR (PSC) ......................................................................49
S-200
CHECKING DUCT STATIC ........................................................................................................................... 49
S-201
CHECKING TEMPERATURE RISE ............................................................................................................. 50
S-300
CHECKING PRIMARY LIMIT CONTROL ...................................................................................................... 50
S-301
CHECKING AUXILIARY LIMIT CONTROL .................................................................................................... 51
S-302
CHECKING FLAME ROLLOUT CONTROL .................................................................................................. 51
S-303
INDUCED DRAFT BLOWER MOTOR .......................................................................................................... 52
S-304
CHECKING GAS VALVE (REDUNDANT) .................................................................................................... 52
S-305
CHECKING MAIN BURNERS ...................................................................................................................... 52
S-306
CHECKING ORIFICES ................................................................................................................................ 53
S-307
CHECKING GAS PRESSURE ..................................................................................................................... 53
S-308
CHECKING HOT SURFACE IGNITOR ......................................................................................................... 55
S-309
CHECKING FOR FLASHBACK ................................................................................................................... 56
S-310
CHECKING PRESSURE CONTROL ........................................................................................................... 56
S-311
HIGH ALTITUDE APPLICATION (USA) ......................................................................................................... 56
S-312
CHECKING FOR DELAYED IGNITION ........................................................................................................ 57
S-313
CHECKING INTEGRATED IGNITION CONTROL BOARDS ........................................................................ 57
S-314
CHECKING FLAME SENSOR ................................................................................................................... 58
