Regular Owner Maintenance – All Packaged Systems
Never use combustible cleaning fluids on any part of the furnace.
You can perform some of the periodic maintenance functions for the unit yourself; this includes replacing (disposable) or cleaning (permanent) the air filters, cleaning the cabinet, cleaning the condenser coil, and conducting a general unit inspection on a regular basis.
Air Filters
It is very important to keep the central duct system air filters clean. Be sure to inspect them at least once each month when the system is in constant operation (in new homes, check the filters weekly for the first 4 weeks).
If you have a
Note: It may be necessary to replace permanent filters annually if washing fails to clean the filter, or if the filter shows signs of deterioration. Be sure to use the same type and size as was originally installed.
Unit Cabinet
Even though the unit cabinet is designed to withstand exposure to outdoor weather, you can extend the life of the cabinet panel by cleaning and waxing it twice each year. Application of a light coat of automobile wax is recommended.
Condenser Coil
Unfiltered air circulates through the units condenser coil and can cause the coil's surface to become clogged with dust and dirt. Have the coils checked by a service technician each cooling season.
Be sure to keep all vegetation away from the condenser coil area.
General Unit Inspection
Occasionally check over the unit; look and listen for unusual or abnormal operating characteristics. Do not remove any access panels. If you suspect your unit is not operating properly, contact a service technician for instructions.
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