Heatiator NDI35-SPFK, NDI30-SPFK Troubleshooting, Symptom Possible Cause Corrective Action

Troubleshooting (continued)

Symptom	Possible Cause	Corrective Action
3. (Continued)	C. Valve.	Turn the valve knob to the ON position. Place the ON/
		OFF switch in the ON position. Take a reading with a
		millivolt meter at the thermopile terminals. The millivolt
		meter should read greater than 125mV. If the reading
		is acceptable, and if the burner does not come on, re-
		place the gas valve.
	D. Plugged burner orifi ce.	Check the burner orifi ce for stoppage. Remove stop-
		page.
	E. Wall switch or wires.	Check the wall switch and wires for proper connec-
		tions. Place the jumper wires across the terminals at
		the wall switch. If the burner comes on, replace the
		wall switch. If the wall switch is OK, place the jumper
		wires across the wall switch wires at the gas valve. If
		the burner comes on, the wires are faulty or connec-
		tions are bad.
4. Frequent pilot outage	A. Pilot fl ame may be too high or too low, or blow-	Clean thermocouple and adjust the pilot fl ame for
problem.	ing out (high pressure), causing pilot safety to	proper fl ame impingement. Follow lighting instructions
	drop out.	carefully.
5. The pilot and main	A. No LP in tank.	Check the LP (propane) tank. Refi ll the fuel tank.
burner extinguish
	B. Improper gas inlet pressure.	Natural gas should be 5-14 in. w.c. LP should be 10-
while in operation.
		14 in. w.c. Verify pressure with manometer.
	C. Inner vent pipe leaking exhaust gases back	Check venting system for damage. Replace/repair im-
	into the system.	properly assembled pipe sections.
	D. Glass installed improperly.	Check to ensure glass is installed properly. Replace
		fi xed glass panel assembly.
	E. Thermopile or thermocouple.	Replace pilot if necessary.
	F. Improper vent cap installation.	Check for proper installation and freedom from debris
		or blockage.
6. Glass soots.	A. Flame impingement.	Adjust the log set so that the fl ame does not exces-
		sively impinge on it. Refer to log instructions.
	B. Improper air shutter setting.	Refer to manual for shutter set points. Ensure that set
		point is correct for appliance/gas type. If unit has ad-
		justable shutter, it may be necessary to increase shut-
		ter opening.
	C. Debris around air shutter.	Inspect the opening at the base of the burner. NO MA-
		TERIAL SHOULD BE PLACED IN THIS OPENING.
7. Flame burns blue	A. Insuffi cient oxygen being supplied.	Ensure that the vent cap is installed properly and free
and lifts off burner.		of debris. Ensure that the vent system joints are tight
		and have no leaks.
		Ensure that no debris has been placed at the base of,
		or in the area of the air holes in the center of the base
		pan beneath the burner.
		Ensure that the glass is tightened properly on the unit,
		particularly on top corners.

Heatilator • NDI30, NDI30-SP, NDI35, NDI35-SP, NDI30-SPFK, NDI35-SPFK • 2226-900 Rev. G • 4/11 37