Filter
Top Products
7
b. Remove second filter lying
above blower. Slide filter
toward rear of furnace and
out of blower compartment.
(See Fig. 15.)
15
4. Inspect the filter. If torn, replace
it.
NOTE:
If filter that was shipped
with furnace has been replaced
with an electronic air cleaner
(EAC), refer to the EAC Owner’s
Manual for maintenance informa-
tion.
5. The filters shipped with the fur-
nace are disposable. If they are
dirty, they must be replaced. If
your furnace air filter needs to
be replaced, be sure to use the
same size and type of filter that
was originally supplied. Use the
furnace filter table and compare
your furnace size with the
proper filter size.
FURNACE AIR FILTER TABLE
If you have replaced the factory-
provided disposable filters with
permanent washable filters, they
may be cleaned if they are dirty.
Wash filters in a sink, bathtub, or
outside with a garden hose. Always
use cold tap water. A mild liquid
detergent may be used if necessary.
Spray water through filter in the
opposite direction of airflow.
Allow filter to dry.
6. Reinstall clean air filters by
reversing procedure in item
3 above.
7. Replace blower access door.
(See Fig. 16.)
8. Turn on electrical supply to
furnace.
16
A CHECK-UP
CHECKLIST
Your furnace represents an impor-
tant investment in your family’s
comfort and your home’s value. To
keep it performing properly and as
a preventative to future problems,
have a trained service specialist
give your furnace a professional
check-up annually. The following
checklist can be used as a guideline
to proper service:
• Check flue and secondary tube pas-
sage ways including chimney —
clean if necessary.
• Change oil filter.
• Change nozzle.
• Check and adjust combustion and
draft.
• Inspect all vent piping inside struc-
ture for deterioration and vent termi-
nations outside the structure for
blockage.
• Check oil pipes leading to and
inside of your furnace for leaks.
• Inspect and clean the blower motor
and wheel.
• Inspect and change or clean air fil-
ters if necessary.
• Inspect all supply- and return-air
ducts for obstructions, air leaks, and
insulation. Remedy any problem
when necessary.
• Inspect the return-air duct connec-
tions at the furnace to ensure it
is physically sound, sealed to
the furnace casing, and terminates
outside the space containing the
furnace.
• Inspect electrical wiring, connec-
tions, and components for loose
connections.
• Examine the physical support of
the furnace. Support should be
sound with no cracks, sagging, gaps,
etc. around the base.
• Check furnace for any obvious
signs of deterioration.
BEFORE YOU REQUEST
A SERVICE CALL
If your furnace is not operating or
not performing properly, you may
save the expense of a service call
by checking a few things yourself
before calling for service.
FOR INSUFFICIENT AIRFLOW:
• Check for dirty air filters.
• Check for blocked return-air or
supply-air grilles throughout your
home. Ensure they are open and
unobstructed.
If problem still exists, call your
dealer for service.
IF FURNACE FAILS TO
OPERATE:
Follow this checklist step by step,
advancing to the next step only if
furnace fails to start.
• Check thermostat for proper tem-
perature. Is thermostat set above
room temperature?
• Is thermostat set on HEAT?
• Check fuses and circuit breakers.
Is electrical supply on?
• Is valve in oil supply pipe in open
position?
• Is the ignition control on the burner
not in lockout? The red button on top
FURNACE
CASING
DEPTH
(IN.)
FILTER
QUANTITY
AND SIZE
(IN.)
FILTER
TYPE
53-3/4 (2) 12 X 20 X 1 Disposable
60-5/32 (2) 16 X 20 X 1 Disposable
1
2