PERFORMING ROUTINE MAINTENANCE
With proper maintenance and care, your furnace will operate economically and dependably. Instructions for basic maintenance are found on this and the following pages. However, before beginning maintenance, follow these safety precautions:
!WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death.
Turn off electrical power supply to your furnace before removing the access doors to service or perform maintenance.
!CAUTION
CUT HAZARD
Failure to follow this caution may result in personal injury.
Although special care has been taken to minimize sharp edges, be extremely careful when handling parts or reaching into the furnace. Wear safety glasses, gloves, and appropriate protective clothing.
FILTERING OUT TROUBLE
!CAUTION
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 filter will cause excessive stress on the furnace, heat exchanger, and blower motor and can cause it to overheat and automatically shut down. The furnace filter should be checked every 4 weeks and cleaned or replaced if necessary.
If installed with factory specified disposable media filter, check or replace filter before each heating and cooling season. Replace disposable media filter at least twice a year.
If your furnace filter needs replacing, be sure to use the same size and type of filter that was originally specified. The air filter for the furnace may be located in a filter cabinet attached to the side or bottom of the furnace. 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 the electrical supply to the furnace.
A92185
Fig. 13 - Turn Off Electrical Supply
2.Remove filter cabinet door (See Fig. 14 and 15.) NOTE: It may be necessary to remove 1 thumbscrew.
A06190
Fig. 14 - Removing Side Filter Cabinet Door
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Fig. 15 - Removing Bottom Filter Cabinet Door
3.Slide air filter out of filter cabinet. Keep dirty side up (if dirty) to avoid spilling dirt. (See Fig. 16 and 17.)
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