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Inspect the physical support of the furnace to guaran-
tee that it is sound without sagging, cracks or gaps
around base and it maintains seal between base and
support.
Inspect and clean the condensate traps and drain.
Blower
Check and clean blower wheel for any debris. Blower
motor is pre-lubricated for extended bearing life. No
further lubrication is needed.
Burner Flame
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Burner Flame
- -- - Start burner and allow it to operate
for a few minutes to establish normal burning condi-
tions. Check burner flame by observation. Flame
should be predominantly blue in color and strong in
appearance.
Contact your Lennox dealer for a periodic unit inspec-
tion by a qualified service technician.
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Call your Lennox service technician if unit is inopera-
tive. Before calling, always check the following to be
sure service is required.
1 - - Check that electrical disconnect switches are
2 - - Check room thermostat for proper setting.
3 - - Replace any blown fuses or reset circuit breakers.
4 - - Gas valve should be
5 - - Air filter should not be plugged limiting air flow.
6 - - Is gas turned on at meter?
7 - - Is manual main shut-off valve open?
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If you discover any of the following, shut down your
unit, and contact an independent Lennox dealer for
an inspection by a qualified technician.
-
If you repeatedly hear any new or unfamiliar
sounds while your unit is operating, there may be a
problem. For example, poorly performing burners
can produce unfamiliar noises.
-
If you smell any unusual odors, your unit may be
operating improperly. For example, units can give
off unfamiliar odors if components are required to
operate in abnormal conditions.
-
Look for visible signs of a malfunctioning unit. Ex-
amples include unusual amounts of condensate
on windows inside your house, visibly burnt com-
ponents or unusual dirt or rust accumulations on
the vent pipe or in the unit.
.
ON
-
,f you experience headache, nausea, fatigue, or
dizziness, the cause could be exposure to carbon
monoxide gas. This is often misdiagnosed as the
flu because symptoms are similar. If you suffer
from flu- -like symptoms that are exaggerated at
home, but seem to subside while you are away
from the house, exposure to carbon monoxide
could be the cause.
Your vigilance may pay off in early detection of a
problem before either personal injury or property
damage occurs. Do not hesitate to contact a qualified
service technician as an investment in your well be-
ing.
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You should expect a service technician to check the
following items during an annual inspection. Power
to the unit must be shut off for the service technician’s
safety.
Fresh air grilles and louvers
room where the furnace is installed) - - Must be open
and unobstructed to provide combustion air.
- - Must be inspected for rust, dirt, or signs of
Burners
water.
- - Must be inspected for dirt, signs of water,
Vent pipe
damaged or sagging unsupported pipe, or discon-
ON.
nected joints.
Unit appearance
water, burnt or damaged wires, or components.
Blower access door
provide a seal between the return air and the room
where the furnace is installed.
Return air duct - - Must be properly attached and pro-
vide an airtight seal to unit.
Operating performance - - Unit must be observed dur-
ing operation to monitor proper performance of the
unit and the vent system.
Combustion gases - - Flue products must be analyzed
and compared to the unit specifications.
Problems detected during the inspection may make it
necessary to temporarily shut down the furnace until
the items can be repaired or replaced.
Pay attention to your furnace. Situations can arise be-
tween annual furnace inspections that may result in
unsafe
operation.
stored next to the furnace may obstruct the combus-
tion air supply. This could cause incomplete combus-
tion and the production of carbon monoxide gas.
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(on the unit and in the
- - Must be inspected for dirt, signs of
- - Must be properly in place and
For
instance,
items
innocently
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