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ELECTRICAL
SHOCK H AZARD
Failure t ofollow this warning could r esult inpersonal
injury/death.
Turn offelectrical power supply toyour f urnace before
removing theaccess doors to service o r perform
maintenance.
CUT HAZARD
Failure to follow
this caution
may result in minor personal
injury.
Although
special
care has been
taken
to minimize
sharp
edges, be extremely
careful
when handling
parts or reaching
into the furnace.
Filtering
Out Trouble
UNIT
PERFORMANCE
HAZARD
Failure to follow
this caution
may result in product
damage.
Never operate
your furnace
without
a filter in place.
Doing
so
may
damage
the
furnace
blower
motor.
An
accumulation
of dust and
lint on internal
parts
of your
furnace
can cause a loss of efficiency.
A dirty air filter will cause
a loss of airflow
in your duct system.
When excessive
loss of airflow
occurs, the furnace
may cycle on
its safety controls.
If this condition
is left unattended,
the furnace
will eventually
lock out. It is recommended
that the furnace
air
filter be checked
eve_
3 or 4 weeks
and cleaned
if necessa_.
If installed
with factory-specified
disposable
media
filter, check
or replace
filter before each heating
and cooling
season.
Replace
disposable
media
filter at least once a year.
The air filter is normally
located
in the blower
compartment
or
in the
factory-supplied
filter
cabinet
attached
to the
side
or
bottom
of the furnace
casing.
If air filter
has been
installed
in
another
location,
contact
your dealer for instructions.
To inspect,
clean,
and/or replace
the air filter(s),
follow
these
steps:
1. Turn off electrical
supply to furnace.
(See Fig. 17.)
2. Remove
door/access
panel.
a. Air Filters Located
in Blower
Compartment
(1.) Remove
main furnace
door. (See Fig. 19.)
(2.) Remove
blower
access panel. (See Fig. 20.)
NOTE:
It will be necessary
to remove
2 screws
b. Air Filters Located
in Filter Cabinet
Remove
filter cabinet
door. (See Fig. 21 and 22.)
NOTE:
It will be necessary
to remove
1 thumbscrew
3. Remove
air filter from furnace.
a. Air Filters Located
in Blower
Compartment
Bottom:
(1.) Slide filter retainer
sideways
until it is free of
latch. (See Fig. 23.)
(2.) Slide air filter out of furnace.
(See Fig. 24.)
b. Air Filters Located in Blower
Compartment
Side:
(1.) Remove
filter retainer
from latch. (See Fig. 25.)
(2.) Gently
remove
air filter and carefully
turn the
dirty side up (if dirt5, ) to avoid spilling
dirt from
the filter. (See Fig. 26.)
c. Air Filter Located
in Filter Cabinet:
Slide air filter out of furnace.
Keep dirty side up (if dirty)
to avoid spilling dirt. (See Fig. 27 and 28.)
4. Inspect the filter. If torn, replace it.
NOTE:
If washable
filter that was shipped
with the furnace
has
been replaced by:
-Factory
specified
disposable
media filter:
Do not clean. If dirty,
replace only with media filter having
the same part number
and
size. Install with airflow direction
arrow pointing
towards
blower.
-Electronic
air cleaner
(EAC):
Refer to EAC Owner's
Manual
for maintenance
information.
Fig. 19 - Removing
Furnace
Door
A05087
Fig. 20 - Removing
Blower
Access Panel
Fig. 21 - Removing
Side Filter
Cabinet
Door
Ags204
A06190
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