Roberts Gorden HE-40 Honeywell SmartValve II Troubleshooting, LED Status, Indicates, Section

SECTION 12: TROUBLESHOOTING

12.1 Honeywell SmartValve® II Troubleshooting

This heater is supplied with the Honeywell Smart- Valve® II control system. This system is equipped with a diagnostic function that will assist in performing troubleshooting. The LED (Light Emitting Diode) indi- cator at the top of the SmartValve® II control will flash in various patterns to indicate status. The LED status indication chart provided below gives a summary of possible faults.

LED Status	Indicates
Off	No power to the control
Bright-Dim	Normal Operation.This indication
	shows whenever the system is pow-
	ered, unless some abnormal event
	has occurred.
2 Flashes	Pressure switch remains closed lon-
	ger than 30 seconds after a call for
	heat begins (pressure switch stuck
	closed). The SmartValve® II checks
	the status of the pressure switch con-
	tacts and must see a change in the
	contact with every firing cycle. Placing
	a jumper at the switch out of
	sequence will result in a fault, with the
	LED indicator flashing 2 times.
3 Flashes	Pressure switch remains open longer
	than 30 seconds after combustion air
	blower is energized. Check for correct
	blower operation, blower intake
	obstructions, pressure switch tubing
	and wiring.
4 Flashes	Limit string open, 2" white jumper wire
	on valve is loose.
5 Flashes	Flame signal sensed out of proper
	sequence.
6 Flashes	System Lockout. Flame sensing cir-
	cuit is not functioning properly. Per-
	form the checks following the "Does
	the burner stay lit?" bubble in the trou-
	bleshooting flow chart on Page 54,
	Section 12.2.

WARNING

Electrical Shock Hazard

Do not disconnect ground leads inside heater.

Do not interchange grounded and ungrounded leads on transformer or ignition module.

Failure to follow these instructions can result in death or electrical shock.

Page 56, Section 12.3 will provide the information needed to test the manifold gas pressure setting. Page 54, Section 12.2 will guide you through several troubleshooting steps to determine possible prob- lems with the systems.

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