Schwank STR-CANADA - Manual (Page 25)

SP-MSTR-AC-11A
STR Manual
RD: NOV, 2003
RL: 11
KH
• CHECK FOR PROPER TEMPERATURE
CONTROLLER OPERATIONS
• REMOVE VALVE LEAD AT IGNITION
CONTROL, IF VALVE CLOSES, RECHECK
TEMPERATURE CONTROLLER AND WIR
ING, IF NOT, REPLACE GAS CONTROL.OR
CALL FOR HEAT ENDS:
SYSTEM SHUTS OFF
YES
NO
MAIN BURNER LIGHTS
• CHECK FOR 25 VAC ACROSS VALVE AND
VALVE TERMINALS IN IGNITER AND CAP, IF
NO VOLTAGE, REPLACE IGNITION CON-
TROL
• SPARK IGNITER MAY BE OUT OF POSITION
CHECK ELECTRICAL CONNECTION BE
TWEEN IGNITION CONTROL AND GAS CON
TROL, IF OKAY, REPLACE GAS CONTROL
YES
NO
SPARK STOPS WHEN
BURNER LIGHTS
SYSTEM RUNS UNTIL
CALL FOR HEAT ENDS
YES
NO
YES
NO
• NOTE: IF IGNITION CONTROL GOES INTO
LOCKOUT, RESET SYSTEM
• CHECK CONTINUITY OF SENSOR CABLE
AND GROUND WIRE
• CHECK THAT BURNER FLAME COVERS
ALL ELECTRODES
• IF CHECKS ARE OKAY, REPLACE IGNITION
CONTROL
• NOTE: IF IGNITION CONTROL GOES INTO
LOCKOUT, RESET SYSTEM
• CHECK CONTINUITY OF SENSOR CABLE
AND GROUND WIRE
• NOTE: IF GROUND IS POOR OR ERRATIC,
SHUTDOWNS MAY OCCUR OCCASIONALLY,
EVEN THOUGH OPERATION IS NORMAL AT
THE TIME OF CHECKOUT IF CHECKS ARE
OKAY, REPACE IGNITION CONTROL
TROUBLESHOOTING ENDS
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