Vermont Casting DBR36 - Manual (Page 23)

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GAS SUPPLY ON • SUPPLY LINE HOOKED UP
• SHUTOFF VALVE OPEN NO
NO
NO
NO
• LOCKOUT HAS ENGAGED. WAIT
60 SECONDS AND TRY AGAIN.
• PIEZO NOT TIGHT ENOUGH
FOR GOOD GROUND.
• FOR SPARK AT ELECTRODE
WHILE DEPRESSING PIEZO
(RED BUTTON) — 1/8" GAP TO
PILOT HOOD NEEDED.
• ALL WIRING CONNECTIONS
• REPLACE PIEZO IGNITOR
• THERMODISK
• FOR AIR IN THE LINES
• THERMOPILE NEEDS A
MINIMUM 325mV. ADJUST
PILOT FLAME HEIGHT.
• ALL WIRING CONNECTIONS.
• REPLACE THERMOPILE
• THERMOCOUPLE NEEDS A
MINIMUM OF 14mV.
• DEFECTIVE VALVE. TURN TO
PILOT, METER SHOULD READ
GREATER THAN 100 mV. IF
NOT, REPLACE.
• THERMODISK
PILOT LIGHTS WITH
PIEZO IGNITOR
YES
YES
YES
YES
PILOT STAYS LIT
PILOT LIGHTS MAIN
BURNER
SYSTEM OK.
START
CHECK
• WALL SWITCH IS NOT
TURNED ON. WATCH
FOR GROUNDED WIRES!
•THERMOPILE NEEDS A
MINIMUM 325mV.
• PLUGGED BURNER ORIFICE.
TROUBLE SHOOTING THE GAS CONTROL SYSTEM
HONEYWELL MILLIVOLT VALVE