Lennox Hearth II-T C INS, II-T C FS TROUBLESHOOTING Qualified Technicians Only, Pellets will not

TROUBLESHOOTING Qualified Technicians Only

Unplug Appliance Before Performing Any Troubleshooting or Maintenance

PROBLEM	CAUSE(S)	SOLUTIONS
4. Pellets will not	The hopper is empty.	Refill hopper.
feed.	The auger motor or circuit board, air	Check to be sure that there is no blockage in the pressure tap or
	inlet high limit switch or pressure	hose. Have your authorized Lennox Hearth Products dealer diag-
	switch may be defective. The pressure	nose the problem and clean or replace any necessary parts.
	switch tap or hose may be blocked.
	Back pressure in venting tripping pres-	If new installation check for excessive 90˚ bends, long horizontal
	sure switch.	runs or excessive vertical run of 3” pipe. Possibly change to 4” pipe.
		If older installation check for excessive ash accumulation in pipe or
		other obstructions. Clean out pipe.
	Thermostat is in stand-by mode.	Check to see if thermostat is set too low or if sun is shining directly
		on thermostat.
	Thermostat wires disconnect.	Re-install wires.
	High limit switch may have been	Allow stove to cool. Increase convection blower setting.
	tripped.
	Self-aligning bearings in auger motor	Gently tap the auger motor.
	may be misaligned.
	Auger is Jammed	Unplug stove. Remove the rear inspection panel (freestanding
		model). Hold auger motor gearbox in both hands and rock it back
		and forth to release the auger. If this is unsuccessful, then contact
		your authorized Lennox Hearth Products dealer.
	Auger Motor Setscrew is loose.	Tighten setscrew.
	Pressure switch is sensing back pres-	Remove left side panel (freestanding model) and locate the orange
	sure in the vent system and shutting	rubber hose that attaches the pressure switch to the exhaust
	off the auger motor.	blower. Disconnect the rubber hose from orifice on blower housing.
		If the auger starts to feed, the pressure switch is sensing back pres-
		sure. After test, reconnect hose to blower (NEVER operate the ap-
		pliance with hose removed). Clean venting system and exhaust flow
		passages as outlined in Routine Maintenance section of this man-
		ual. Note: Multiple elbows are more susceptible to collecting ash
		resulting in restriction
5. Blowers will not	The low limit disc has failed in the	Have your authorized Lennox Hearth Products dealer replace the
shut off after the fuel	closed position.	low limit disc.
has been switched
off and the stove has
cooled down.
6. Blowers will not	There is no power to the stove.	Check that the stove is plugged in to the wall outlet. Ensure that
operate when the		there is power to the outlet (test by plugging in a lamp into same
start button is de-		outlet).
pressed.	There is no power to the control board.	Check to see if your circuit breaker has tripped.
		Check the wire connections on the high limit disc and control board.
7. One or both blow-	Both the room air blower and the ex-	Ensure the room air blower is adjusted to a setting at least as high
ers shut off for no	haust blower have an over-heat pro-	as or higher than the fuel fee setting. If the blower motor continues
apparent reason.	tector (high limit disc) built into them. If	to shut down, clean blower intake (see Routine Maintenance). If this
	the temperature of the blower motor	does not correct the problem, replace the blower.
	exceeds the high limit temperature,
	then the motor shuts down.
8. Stove will not light.	The igniter element may have failed.	Check igniter element fuse in rear stove compartment. Call your
		authorized Lennox Hearth Products dealer. See alternate manual
		lighting procedure
	There are not enough pellets in the	Prime the feed system (see Starting Your Pellet Stove on page 22).
	UltraGrateTM.
	Improper damper setting.	Adjust damper (see page 23 Damper Operation and page 24
		Damper Adjustment Guidelines).

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