Lennox Hearth II-T C FS - Manual (Page 37)

TROUBLESHOOTING Qualified Technicians Only
Unplug Appliance Before Performing Any Troubleshooting or Maintenance
PAGE 37
PROBLEM CAUSE(S) SOLUTIONS
9. There is soot or fly
ash in the house.
The window is being cleaned or ash
pan removed when the stove is operat-
ing.
There is leakage at the joints between
the Exhaust Blower connection or ex-
haust pipe connections. This will be
evidenced by dust on the impeller of
the Room Air Blower, and in the heat
exchanger area.
For a fireplace insert installation: if the
existing fireplace opening was not
thoroughly cleaned and painted before
the insert was installed, then the Room
Air Blower may be picking up the fire-
place dust, soot or ash and blowing it
into the house.
The vacuum cleaner is leaking.
Turn down the Room Air Blower or turn off stove before cleaning to
prevent dispersion of ash and soot into the room.
Seal leaks in the exhaust system using high temperature RTV Sili-
cone sealer (silicone should be at room temperature).
Pull insert away from fireplace opening. Thoroughly clean the fire-
place firebox (recommend painting with latex or spray paint to hold
down the finer particles. Wear a protective mask when painting in
enclosed spaces).
DO NOT use a standard household vacuum or “shop vac” as the
filters will leak the fine particles of ash. Clean the stove with an ap-
proved ash vacuum ONLY.
10. Blinking red
lights on control
board LED's.
Thermostat circuit in not closed. If a wall thermostat is not installed, a jumper is required between the
2 thermostat terminals (see page 12). If the jumper is missing con-
tact your authorized Lennox Hearth Products dealer.
The wall thermostat (if used) is defective or there is a break in the
connections or thermostat wire.
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