Vermont Casting DVR33 - Manual (Page 28)

28
Vermont Castings, Majestic Products: DVR33
10004920
Troubleshooting – Honeywell Millivolt Valve
START CHECK
Gas Supply ON
▼
▼
▼
▼
▼
Pilot lights with Piezo
igniter
• Lockout has engaged. Wait 60
seconds and try again.
• For spark at electrode while
depressing Piezo, 1/8" gap
to pilot hood needed.
• All wiring connections
• Replace Piezo igniter
• Supply line hooked up
• Shutoff valve OPEN
PILOT STAYS LIT
• For air in the lines
• Thermopile needs min. 325 mv
• Adjust Pilot flame height
• All wiring connections
• Replace thermopile
• Thermocouple needs min. 14 mv
PILOT LIGHTS MAIN
BURNER
• Valve is turned ON
• Wall switch is not turned ON.
Watch for grounded wires!
• Thermopile needs min. 325 mv.
• Plugged burner orifice
• Defective Valve: Turn to Pilot;
meter should read greater than
100 mv. If not, replace.
SYSTEM OK
▼
YES
NO
NO
▼ NO
▼ NO
YES
YES
YES
Window Frame Assembly Should be Removed Before Service Work