Roberts Gorden HE-150, HE-60, HE-80 be in the on position. Check, in wc for model HE-175, stay on?

Yes

After igniter warm-up				No	Are the wires to	No
period, does the valve					and from the
click?					SmartValve® II OK?
Yes					Yes
	Were the gas lines				Replace
Does the burner light? No		No	Purge gas line.		SmartValve®
	purged of air?
					II.
	Yes
	SmartValve® II ignition				Check for proper orifice.
	system control switch must Yes		Check outlet gas	Yes
					Check for proper air plate.
	be in the on position. Check		pressure during
	inlet gas pressure during		ignition period. Is the
	ignition period. Is the		natural gas pressure
	natural gas pressure at		3.5 in wc ? (LP pressure
	least 4.6 in wc?		10.5" wc?)
	5.0 in wc for model HE-175
	(LP pressure 11" wc?)
	No		No
	* Check inlet gas cock		Adjust to proper
	* Contact gas company		pressure.
	* Adjust the regulator		See Section 12.3.

Replace wires.

Repair/Replace.

Yes

Does the burner	No
stay on?

Yes

Does burner run until the No call for heat ends?

Yes

TROUBLESHOOT ENDS

If the problem persists, Or contact your

ROBERTS GORDON® Independent Distributor.

Is the continuity	Yes	Are L1 and L2	No	Is the wiring at the	Yes
of the ground wire OK?		reversed?		SmartValve® II OK?
No		Yes		No
Repair/correct wiring.		Repair/correct wiring.		Repair/correct wiring.
Check the continuity
of the ground wire.
Check the thermostat.
Contact
Roberts-Gordon LLC
at www.rg-inc.com

	No
Is the insulation	Is the flame sensor
on the flame sensor Yes
	positioned properly?
lead OK?

No

Repair/correct wiring.

Yes

Clean flame sensor. Yes Is the flame sensor dirty?

No

Replace flame sensor.

SECTION 12: TROUBLESHOOTING

55