Ignitor cable loose, pinched or wet		Check to make sure igniter cable not pinched or wet.  Check at point of connection to igniter electrode - make sure cable is fully pressed into point of electrode.		If cable insulation split or damaged replace.  Dry out the cable if wet.
				Piezo igniter nut loose		Make sure the piezo ignitor is tight - the nut should be positioned so the flat side is toward the button for best electrical contact.
		No Spark
				Ignitor electrode positioned wrong or dirty		Inspect ignitor electrode to make sure it is positioned correctly & free of dirt, dust, & moisture		Wipe electrode clean with a dry rag and re-test
				Ignitor electrode body cracked		Inspect porcelain body of ignitor for cracks		If crack found, replace ignitor electrode & re-test
Pilot Doesn't light
				Piezo ignitor worn out or defective		If sparking is still not present following all the above steps, replace the piezo ignitor and/or the cable
				Gas supply turned off or manual shut-off closed		Make sure the gas supply is turned on - be sure manual shut off valve is open
				Air in pilot gas line		Purge pilot line- turn control knobs to pilot - fully depress knob.  Attempt ignition every 30 sec until you have correct pilot flame
		Spark but no ignition
				Dirty pilot assembly		Clean pilot assembly following cleaning & maint. Instructions on page GP1 & GP2		Reassemble and re-test for correct pilot flame
				Insufficient gas supply or pressure		Check gas supply pressure at the pressure tap on the manual shut-off below the heater and at the manifold pressure tap next to the control valve with a manometer		If the inlet pressure is correct to the specifications, but the manifold pressure is low replace the internal pressure regulator or inlet tubing as required
				Control Knob not held down long enough		Control valve must be held down long enough to get thermocouple hot … at least 10-15 seconds before release
				Air in gas line when installed		Continue holding down control knob repeating ignition operation until air is removed
Pilot lights but will not stay lit				Insufficient fresh air (front of flame lifts away)		If the pilot flame lifts off the thermocouple check to make sure room is properly ventilated and not too small - If necessary open a window to provide adequate fresh air
				Bad valve or thermocouple/ODS		Check the pilot flame.  If it appears normal, then the control valve and the thermocouple need to be tested with a millivolt tester
						Check for drafts around the heater		Relocate heater if necessary to more protected area
				Incorrect air/gas mix at the pilot (rear of flame lifts away)
				Heater Installed above 4500 Feet Elevation		Vent-Free gas heaters will not operate  properly at high elevations.
						Check the bimetal strip covering the air intake on the nozzle.  It may be allowing too much air in.		Adjust strip to restrict the amount of air in the mix
				Burner air line is clogged		Clean burner
		Burner won't light
				Inlet gas pressure is too low and supply line is the correct size		Contact local gas company
Main burner won't light or won't stay lit
				Low pressure to burner air line		Check for cause.  If inlet & manifold pressures are correct when measured with a manometer, examine fuel line to burners and check for leaks.
		Delayed Ignition
				Dirty or blocked burners		Check for dust, debris, or spider webs in the burners- thoroughly clean anything that may block the flow of gas
				Orfice clogged or damaged		Clean burner
		Burner Backfiring		Burner damaged		Replace burner
				Gas regulator defective		Replace regulator
				Not enough air		Check burner for dirt and clean
		Yellow flame during combustion
				Gas regulator defective		Replace regulator
		Slight smoke or odor during initial operation		Residue from manufacture		Will go away after a few hours
Burn Problems				Metal expansion caused by turning control knob to "High" when the heater is cold		Warm up heater in low position then turn to "High"
				Air in gas lines		Operate burner till all air is removed.  Have line checked by gas company.
		Burner whistles when lit
				Air passageways blocked		Check all installations for minimum clearances
				Dirty or blocked orfice		Clean burner with compressed air
				When first lit		Metal expanding while heating
		Heater Clicks
				When shut off		Metal contracting while cooling
				Household chemicals		Ventilate room - since heaters burn the air, ventilating the other odors should solve the problem		Avoid using aerosols near the heater
		Unwanted odors		Low LP fuel supply		Refill tank
				Gas leak
		Not enough fresh air		Open window slightly
Heater shuts off in use		Low gas pressure		Contact gas company
		ODS/pilot partially clogged		Clean ODS/pilot
				Check for other sources such as paint, finger nail polish, or cooking odors		Since heaters burn the air, ventilating the other odors should solve the problem.
		During combustion		Dirt or debris between valve & burner		Take apart tubing and clean
Gas odor				Gas leak		Locate and fix leak		If source of leak or odor can not be found or corrected, contack your gas supplier
				Gas leak		Locate and fix leak
		When control knob is in "off" position
				Defective control valve		Replace control valve