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
FURNACE | FILTER |
|
CASING | QUANTITY | FILTER |
DEPTH | AND SIZE | TYPE |
(IN.) | (IN.) |
|
|
|
|
(2) 12 X 20 X 1 | Disposable | |
|
|
|
(2) 16 X 20 X 1 | Disposable | |
|
|
|
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.
1 | 2 |
| |
| 16 |
ACHECK-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 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
7
insulation. Remedy any problem when necessary.
•Inspect the
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.
BEFOREYOU 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
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