DV360/580 Series Direct Vent Gas Fireplace
Troubleshooting the Gas Control System
START
•TURN GAS SUPPLY OFF NO
•TURN ON/OFF SWITCH TO CALL FOR HEAT "ON"
POWER TO MODULE
(24V NORMAL)
YES
SPARK ACROSS NO IGNITOR SENSOR GAP
YES
• TURN GAS ON | NO |
PILOT BURNER LIGHTS?
YES
SPARK STOPS WHEN NO PILOT IS LIT?
YES
CHECK: • LINE VOLTAGE (120VAC)
•LOW VOLTAGE TRANSFORMER (19.5 minimum VAC)
•ON/OFF SWITCH
•WIRING CONNECTIONS
UNPLUG IGNITION LEAD | NO |
| |
AND CHECK SPARK |
| • REPLACE MODULE | |
AT MODULE |
| ||
|
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(24VAC normal) |
|
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SPARK OK?
YES 
•CHECK IGNITION CABLE GROUND WIRING, CERAMIC INSULATOR AND GAP. CORRECT AS NECESSARY
•CHECK BOOT OF IGNITION CABLE FOR SIGNS OF MELTING OR BUCKLING. TAKE PROTECTIVE ACTION TO SHIELD
CABLE AND BOOT FROM EXCESSIVE TEMPERATURES.
•CHECK THAT ALL MANUAL GAS VALVES ARE OPEN, SUPPLY TUBING AND PRESSURES ARE GOOD, AND PILOT BURNER ORIFICE
IS NOT BLOCKED.
•CHECK ELECTRICAL CONNECTIONS BETWEEN MODULE AND PILOT OPERATOR ON GAS CONTROL.
•CHECK FOR 24VAC ACROSS
NOTE: IF S8600B GOES INTO LOCKOUT, RESET SYSTEM.
•CHECK CONTINUITY OF IGNITION CABLE AND GROUND WIRE.
•CLEAN FLAME ROD
•CHECK ELECTRICAL CONNECTIONS BETWEEN FLAME ROD & MODULE.
•CHECK FOR CRACKED CERAMIC FLAME ROD INSULATOR.
•CHECK THAT PILOT FLAME COVERS FLAME ROD AND IS STEADY BLUE
•ADJUST PILOT FLAME.
•IF PROBLEM PERSISTS, REPLACE MODULE.
MAIN BURNER LIGHTS?
YES
NO
•CHECK FOR 24VAC ACROSS
•CHECK ELECTRICAL CONNECTIONS BETWEEN MODULE AND GAS CONTROL. IF OKAY, REPLACE GAS CONTROL, OR GAS CONTROL OPERATOR.
SYSTEM RUNS UNTIL NO ON/OFF SWITCH IS IN
"OFF" POSITION YES
TROUBLESHOOTING
ENDS
NOTE: IF S8600B GOES INTO LOCKOUT, RESET SYSTEM
•CHECK FOR CONTINUITY OF IGNITION CABLE AND GROUND WIRE. NOTE: IF GROUND IS POOR OR ERRATIC, SHUTDOWN MAY OCCUR OCCASIONALLY EVEN THOUGH OPERATION IS NORMAL AT THE TIME OF CHECKOUT.
•CHECK THAT THE PILOT FLAME COVERS FLAME ROD AND IS STEADY AND BLUE.
•IF CHECKS ARE OKAY, REPLACE MODULE.
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