Vermont Casting DVT38S2 SIT 822 Valve with a Honeywell Electronic Ignitor, Start, 20009543

Chateau™ Decorative Gas Appliance

Troubleshooting the Gas Control System

SIT 822 Valve with a Honeywell Electronic Ignitor

START

•Turn Gas Supply Off

•Turn On/Off Switch To Call For Heat "on"

Power To Module

(24V Normal)

YES

Spark Across

Ignitor Sensor Gap

YES

•Turn Gas On Pilot Burner Lights?

YES

Spark Stops When

Pilot Is Lit?

YES

Main Burner Lights?

YES

System Runs Until

On/Off Switch Is In

"Off" Position

YES

Troubleshooting

Ends

NO• •Check: • Line Voltage (120vac)

•Low Voltage Transformer (19.5 Minimum Vac)

•On/off Switch

•Wiring Connections

	Unplug Ignition Lead	NO
NO	and Check Spark		• Replace Module
	At Module
	(24Vac Normal)

Spark OK?

YES

•Check Ignition Cable Ground Wiring, Ceramic Insulator And Gap. Correct As Necessary

•Check Boot Of Ignition Cable For Signs Of Melting Or Buckling. Take Protective Action To Shield

Cable And Boot From Excessive Temperatures.

NO	• Check That All Manual Gas Valves Are Open, Supply Tubing
	And Pressures Are Good, And Pilot Burner Orifice
	Is Not Blocked.
	• Check Electrical Connections Between Module And
	Pilot Operator On Gas Control.
	• Check For 24vac Across Pv-mvpv Terminals On Module If
	Voltage Is Okay, Replace Gas Control If Not, Replace
	Module.
NO	NOTE: If S8600B Goes Into Lockout, Reset System.

•Check Continuity Of Ignition Cable And Ground Wire.

•Clean Flame Rod

•Check Electrical Connections Between Flame Rod & Module.

•Check For Cracked Ceramic Flame Rod Insulator.

•Check That Pilot Flame Covers Flame Rod And Is Steady Blue

•Adjust Pilot Flame.

•If Problem Persists, Replace Module.

NO	• Check For 24vac Across Mv-mvpv Terminals If No
	Voltage, Replace Module.
	• Check Electrical Connections Between Module And Gas
	Control. If Okay, Replace Gas Control, Or Gas Control
	Operator.
NO	NOTE: If S8600B Goes Into Lockout, Reset System

•Check For Continuity Of Ignition Cable And Ground Wire. Note: If Ground Is Poor Or Erratic, Shutdown May Occur Occasionally Even Though Operation Is Normal At The Time Of Checkout.

•Check That The Pilot Flame Covers Flame Rod And Is Steady And Blue.

•If Checks Are Okay, Replace Module.

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