Vermont Casting manual Troubleshooting - Honeywell VS8421, Pyromaster H33BDVRRN/P, Start, Check

Pyromaster© H33BDVRRN/P

Troubleshooting – Honeywell VS8421

Remove Glass Doors Before Service Work

START

GAS SUPPLY ON

NO

▼

CHECK

•Supply Line Hooked Up

•Shutoff Valve Open

YES

▼

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
NO			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
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.
	▼		Watch For Grounded Wires!
NO		•
			Thermopile Needs A Min. 325mv.
		•	Plugged Burner Orifice

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