Vermont Casting DVRT39, DVRT43, DVRT36 manual Troubleshooting - Honeywell VS8421, 10002428

Vermont Castings, Majestic Products DVRT36/39/43

Troubleshooting – Honeywell VS8421

START

Gas Supply On

YES

Remove the Window Frame Assembly before service work.

CHECK

		•	Supply Line Hooked Up
NO	▼
		•	Shutoff Valve Open

▼

Pilot Lights With Piezo Ignitor

YES

▼

Pilot Stays Lit

YES

▼

Pilot Lights Main Burner

YES

▼

SYSTEM OK

		• 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
		• Defective Valve. Turn To Pilot,
			Meter Should Read Greater
			Than 100mv. If Not, Replace.
		• Valve Is Turned On
		• Wall Switch Is Not Turned On.
NO	▼		Watch For Grounded Wires!
		• Thermopile Needs A Min. 325mv.
		•	Plugged Burner Orifice

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