Heatiator NDI35-SPFK, NDI30-SPFK owner manual Ues to spark, and main

Symptom	Possible Cause	Corrective Action
	A. A shorted or loose connection in flame	Verify all connections to wiring diagram in manual. Verify
4. Pilot lights but contin-	sensing rod.	connections underneath pilot assembly are tight. Verify con-
ues to spark, and main		nections are not grounding out to metal chassis, pilot burn-
burner will not ignite.		er, pilot enclosure or screen if present, or any other metal
(If the pilot continues		object.
to spark after the
	B. Poor fl ame rectifi cation or contaminated	With fi xed glass assembly in place, verify that fl ame is en-
pilot fl ame has been lit,
	fl ame sensing rod.	gulfing fl ame sensing rod on left side of pilot hood. Flame
fl ame rectifi cation has
		sensing rod should glow shortly after ignition. Verify cor-
not occurred.)
		rect pilot orifi ce is installed and gas inlet is set to pressure
		specifi cations. Clean fl ame sensing rod with emery cloth to
		remove any contaminants that may have accumulated on
		fl ame sensing rod.
	C. Module is not grounded.	Verify module is securely grounded to metal chassis of ap-
		pliance. Verify that wire harness is fi rmly connected to the
		module.
	D. Damaged pilot assembly or contami-	Verify that ceramic insulator around the fl ame sensing rod
	nated fl ame sensing rod.	is not cracked, damaged, or loose. Verify connection from
		fl ame sensing rod to white sensor wire. Clean flame sensing
		rod with emery cloth to remove any contaminants that may
		have accumulated on fl ame sensing rod. Verify continuity
		with a multimeter with ohms set at lowest range. Replace
		pilot if any damage is detected.
	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 wall switch 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 fi ne.

Heatilator • NDI30, NDI30-SP, NDI35, NDI35-SP, NDI30-SPFK, NDI35-SPFK • 2226-900 Rev. G • 4/11 39