Troubleshooting Gas Control (Honeywell Gas Valve) - Majestic DV360 Homeowner's Installation And Operating Manual

DV360/580 Series Direct Vent Gas Fireplace
Remove Window Frame Assembly Before Service Work
START
Gas Supply On
YES
Pilot Lights With Piezo
Ignitor
YES
Pilot Stays Lit
YES
Pilot Lights Main Burner
YES
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SYSTEM OK
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Troubleshooting - Honeywell VS8421
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CHECK
•
Supply Line Hooked Up
NO
•
Shutoff Valve Open
•
Lockout Has Engaged. Wait 60
Seconds And Try Again.
•
For Spark At Electrode While
Depressing Piezo
NO
1/8" Gap To Pilot Hood Needed.
•
All Wiring Connections
•
Replace Piezo Ignitor
•
For Air In The Lines
•
Thermopile Needs A Min.
325mv. Adjust Pilot Flame
Height.
•
All Wiring Connections
•
NO
Replace Thermopile
•
Thermocouple Needs A Min. Of
14mv
•
Valve Is Turned On
•
Wall Switch Is Not Turned On.
Watch For Grounded Wires!
NO
•
Thermopile Needs A Min. 325mv.
•
Plugged Burner Orifice
•
Defective Valve. Turn To Pilot,
Meter Should Read Greater Than
100mv. If Not, Replace.
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