Majestic NVC36 Installation And Homeowners Operating Instructions page 16

NVC Series B-Vent
Remove glass door before service work
START
Gas Supply On
YES
Pilot Lights With Piezo
Ignitor
YES
Pilot Stays Lit
YES
Pilot Lights Main Burner
YES
System Ok
16
Troubleshooting
Honeywell VS8421
NO
NO
NO
NO
CHECK
•
Supply Line Hooked Up
•
Shutoff Valve Open
•
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 Ignitor
•
For Air In The Lines
•
Thermopile Needs A Min.
325mv. Adjust Pilot Flame
Height.
•
All Wiring Connections
•
Replace Thermopile
•
Thermocouple Needs A Min. Of
14mv
•
Defective Valve. Turn To Pilot,
Meter Should Read Greater
Than 100mv. If Not, Replace.
•
Valve Is Turned On
•
Wall Switch Is Not Turned On.
Watch For Grounded Wires!
•
Thermopile Needs A Min. 325mv.
•
Plugged Burner Orifice
20000194