Heatiator NEVO4236I NEVO3630I owner manual Troubleshooting, A. Intellifire Ignition System, Symptom

16 Troubleshooting

With proper installation, operation, and maintenance your gas appliance will provide years of trouble-free service. If you do experience a problem, this troubleshooting guide will assist a qualified service technician in the diagnosis of a problem and the corrective action to be taken. This troubleshooting guide can only be used by a qualified service technician. Con- tact your dealer to arrange a service call by a qualified service technician.

A. Intellifire Ignition System

Symptom	Possible Cause	Corrective Action
1. Pilot won’t light. The	A. Incorrect wiring.	Verify “S” wire (white) for sensor and “I” wire (orange) for ignitor
ignitor/module makes		are connected to correct terminals on module and pilot assembly.
noise, but no spark.
Note: Red LED may flash	B. Loose connections or electrical	Verify no loose connections or electrical shorts in wiring from
	shorts in the wiring.	module to pilot assembly. Verify connections underneath pilot
twice on the Module.
		assembly are tight; also verify connections are not grounding
		out to metal chassis, pilot burner, pilot enclosure, mesh screen if
		present, or any other metal object.
	C. Ignitor gap is too large.	Verify gap of igniter to right side of pilot hood. The gap should be
		approximately .17 inch or 1/8 in. (3 mm).
	D. Module.	Turn ON/OFF rocker switch or remote to OFF position. Remove
		ignitor wire “I” from module. Place a grounded wire about 3/16 in.
		(5 mm) away from “I” terminal on module. Place ON/OFF rocker
		switch or remote in ON position. If there is no spark at “I” terminal
		module must be replaced. If there is a spark at “I” terminal, module
		is fine. Inspect pilot assembly for shorted sparker wire or cracked
		insulator around electrode. Replace pilot if necessary.
2. Pilot won’t light, there is no	A. No power or power supply	Verify that power supply is installed and plugged into module
noise or spark.	installed incorrectly.	and/or batteries are installed in the battery pack. Check voltage of
		power supply under load at spade connection on module with ON/
Note: Red LED may flash		OFF switch in ON position. Acceptable readings of a good power
twice on the Module.		supply are between 4 and 7.5 volts AC.
	B. A shorted or loose connection	Remove and reinstall the wiring harness that plugs into module.
	in wiring configuration or wiring	Verify there is a tight fit. Verify pilot assembly wiring to module.
	harness.	Remove and verify continuity of each wire in wiring harness.
		Replace any damaged components.
	C. Improper wall switch wiring.	Verify that 120 VAC power is “ON” to junction box.
	D. Module not grounded.	Verify black ground wire from module wire harness is grounded to
		metal chassis of appliance.
	E. Module.	Turn ON/OFF rocker switch or wall switch to OFF position.
		Remove ignitor wire “I” from module. Place ON/OFF rocker switch
		or remote in ON position. If there is no spark at “I” terminal module
		must be replaced. If there is a spark at “I” terminal, module is
		fine. Inspect pilot assembly for shorted sparker wire or cracked
		insulator around electrode.
3. Pilot won’t light, there is no	A. Fuel selector is not in the	Turn module selector switch to off.
noise or spark.	correct position.	Turn fuel to correct fuel type.
Red LED flashes once on		Turn module selector to switch or remote (if a remote is installed)
the module.

Heatilator • Evolution • 4065-114 Rev. o • 11/11 59