GMEC96 Service Manual

38
SERVICING
SERVICE NUMBERS
S-1 CHECKING VOLTAGE ................................................................................................................................. 45
S-2 CHECKING WIRING .................................................................................................................................... 45
S-3A THERMOSTAT AND WIRING ....................................................................................................................... 45
S-3B HEATING ANTICIPATOR .............................................................................................................................. 45
S-4 CHECKING TRANSFORMER AND CONTROL CIRCUIT .............................................................................. 46
S-16A CHECKING AIR CIRCULATOR BLOWER MOTOR (EEM) ........................................................................... 46
S-200 CHECKING DUCT STATIC ........................................................................................................................... 46
S-201 CHECKING TEMPERATURE RISE ............................................................................................................. 45
S-300 CHECKING PRIMARY LIMIT CONTROL...................................................................................................... 45
S-301 CHECKING AUXILIARY LIMIT CONTROL .................................................................................................... 48
S-302 CHECKING FLAME ROLLOUT CONTROL .................................................................................................. 50
S-303 INDUCED DRAFT BLOWER MOTOR.......................................................................................................... 50
S-304 CHECKING GAS VALVE (REDUNDANT) .................................................................................................... 50
S-305 CHECKING MAIN BURNERS ...................................................................................................................... 51
S-306 CHECKING ORIFICES ................................................................................................................................51
S-307 CHECKING GAS PRESSURE..................................................................................................................... 51
S-308 CHECKING HOT SURFACE IGNITOR ......................................................................................................... 54
S-309 CHECKING FOR FLASHBACK ................................................................................................................... 54
S-310 CHECKING PRESSURE CONTROL ........................................................................................................... 54
S-311 HIGH ALTITUDE APPLICATION (USA) ......................................................................................................... 55
S-312 CHECKING FOR DELAYED IGNITION ........................................................................................................ 55
S-313 CHECKING INTEGRATED IGNITION CONTROL BOARDS........................................................................ 55
S-314 CHECKING FLAME SENSOR................................................................................................................... 56