10
Maintenance
WARNING!
Turn off all power to unit at system disconnect switch (at the
outdoor unit) or circuit breaker
before performing any main
tenance procedures! Failure to follow this warning could
lead to personal injury or death.
Coil fins are very sharp! Take care not to touch the fins in
order to avoid injury.
Indoor Unit Filters
The indoor unit filter should be cleaned every three months, or
more frequently, if necessary.
Follow the steps below and in the illustrations to clean the filters.
1 -
Pivot indoor unit front panel out and up to access filters.
2 -
Gently pull each filter outward, then down to remove the fil
ters from the unit
3 -
Use a vacuum cleaner to remove dust and dirt from each fil
ter or wash the filters with warm water and a mild detergent.
Rinse filters thoroughly with clean water and set aside to air
dry.
CAUTION!
Do not use hot water to clean the filters. Exposure to wa
ter temperatures above 113°F (45°C) will damage filter
media and frame.
4 -
Reinsert clean, dry filters and close unit front panel. Restore
power to unit.
1
2
3
4
Indoor Unit
Check to make sure that there are no objects on top of unit or around unit that may be obstructing air
flow. Check to make sure that indoor unit and wall bracket are secure and have not been damaged.
Use a clean, dry cloth to gently remove dust from the outer surface of the indoor unit. The cloth may
be slightly dampened with warm water, if necessary. Do not use soap or other cleaners.
CAUTION!
Hot water, soaps or other cleaning agents may damage indoor unit cabinet or display panel.
Do not use hot water (above 113°F [45°C]). Cloth must be damp only (NEVER WET) to avoid
damage to display. Do not use soap or other cleaning agents (window cleaner, abrasive
cleansers, etc.) to clean the indoor unit cabinet.
Outdoor Unit
Check to make sure that there are no objects on top of unit or around unit that may be obstructing air
flow. If the outdoor unit is installed on a wall bracket, make sure that bracket is secure and has not
been damaged. Use a clean, slightly dampened cloth to gently remove dust from the outer surface of
the outdoor unit. Do not use soap or other cleaners and DO NOT spray water into unit.
WARNING!
SHOCK HAZARD! DO NOT SPRAY water into outdoor unit. Failure to follow this warning could
lead to electrical shock, resulting in personal injury or death.
Lennox recommends annual inspection by a licensed professional service technician, or equiva
lent.
