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11
Maintenance
CAUTION
When connecting a return air duct to the unit, the cleaning method of the air filter differs according to the
construction of duct end. Ask a qualified installer or qualified service person.
<Daily maintenance> (Once every 3 months)
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Cleaning of the air filter
(sold separately : TCB-LK2801DP-E)
If displayed on the remote controller, maintain the air filter
(sold separately).
1
Push the
button to stop the operation,
then turn off the circuit breaker.
1. Take out the air filter (sold separately).
2. Cleaning with water or vacuum cleaner.
If dirt is heavy, clean the air filter by tepid water with neutral detergent or water.
After cleaning with water, dry the air filter sufficiently in a shade place.
3. Mount the air filter (sold separately).
2
Turn on the circuit breaker, then push the
button on the remote controller to start the
operation.
CAUTION
Do not start the air conditioner while leaving air filter (sold separately) removed.
Push the filter reset button. ( indication will be turn off.)
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Periodic Maintenance
For environmental conservation, it is strongly recommended that the indoor and outdoor units of the air conditioner
in use be cleaned and maintained regularly to ensure efficient operation of the air conditioner.
When the air conditioner is operated for a long time, periodic maintenance (once a year) is recommended.
Furthermore, regularly check the outdoor unit for rust and scratches, and remove them or apply rustproof
treatment, if necessary.
As a general rule, when an indoor unit is operated for 8 hours or more daily, clean the indoor unit and outdoor unit
at least once every 3 months. Ask a professional for this cleaning / maintenance work.
Such maintenance can extend the life of the product though it involves the owner’s expense.
Failure to clean the indoor and outdoor units regularly will result in poor performance, freezing, water leakage, and
even compressor failure.
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Inspection before maintenance (Once a year)
Following inspection must be carried out by a qualified installer or qualified service person.
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Fan motor
Access from the access panel and check if any abnormal noise can be heard.
Fan
Access from the access panel and remove the access panel. Examine the fan if there are any
waggles, damages or adhesive dust.
Filter (sold separately)
Access from check port and check if there are any stains or breaks on the filter.
Drain pan
Access from the access panel and remove the access panel. Check if there is any clogging or
drain water is polluted.
The unit can be accessed from the access panel shown
in the figure.
Access panel
Electrical control box
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Maintenance List
Part
Unit
Check (visual / auditory)
Maintenance
Heat exchanger
Indoor / outdoor
Dust / dirt clogging, scratches
Wash the heat exchanger when it is
clogged.
Fan motor
Indoor / outdoor
Sound
Take appropriate measures when
abnormal sound is generated.
Filter (sold separately)
Indoor
Dust / dirt, breakage
Wash the filter with water when it is
contaminated.
Replace it when it is damaged.
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Vibration, balance
Dust / dirt, appearance
Replace the fan when vibration or
balance is terrible.
Brush or wash the fan when it is
contaminated.
Air intake / discharge
grilles
Indoor / outdoor
Dust / dirt, scratches
Fix or replace them when they are
deformed or damaged.
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Dust / dirt clogging, drain
contamination
Clean the drain pan and check the
downward slope for smooth drainage.
Ornamental panel,
louvers
Indoor
Dust / dirt, scratches
Wash them when they are contaminated
or apply repair coating.
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Rust, peeling of insulator
Peeling / lift of coat
Apply repair coating.
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