Roberts Gorden 400, 200, 350, 150, 250, 300, 225, 175 Troubleshooting for Flame Supervision System

SECTION 13: TROUBLESHOOTING

13.3 Troubleshooting for Flame Supervision System

To measure flame current, connect a 0 - 50 μA DC meter in series with the flame probe. If the meter reads negative values, then reverse the test leads.

START

Connect a DC ammeter in series with the flame probe.

Is the flame present and		Use General
at least 1 µA DC flame	No	Troubleshooting section to
current?		trace the fault.
Yes
Is there a current flowing in the		Is the connecting lead
	Yes	damaged? Is the flame probe
flame probe circuit with no
		damaged or touching earthed
flame present?		components?
No
Does “lockout” occur when		Is inlet burner gas pressure
	Yes	correct? Is live and neutral
there is a flame present?		polarity correct? Is
		flame probe circuit correct?
		No
		Repair or replace as
		necessary.
No
Heater Operating		If problems persist, contact
	No	Roberts-Gordon, LLC at
TROUBLESHOOT ENDS.
		www.rg-inc.com

Repair or replace as

Yes necessary.

Yes Replace ignition control.

NOTE: Minimum flame probe current 1 μA DC. Typical flame probe current 3-5 μA DC.

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