Toshiba RAV-HM561KRTP-E Installation Manual page 46

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.
Inspection before maintenance
Following inspection must be carried out by a qualified installer or qualified service person.
Part
Heat exchanger
Fan motor
Fan
Filter
Drain pan
Maintenance List
Part
Heat exchanger
Fan motor
Filter
Fan
Air intake /
discharge grilles
Drain pan
Ornamental panel,
louvers
Exterior
45-EN
Access from inspection opening and remove the access panel. Examine the heat exchanger if
there is any clogging or damages.
Access from inspection opening and check if any abnormal noise can be heard.
Access from inspection opening and remove the access panel. Examine the fan if there are
any waggles, damages or adhesive dust.
Go to installed location and check if there are any stains or breaks on the filter.
Access from inspection opening and remove the access panel. Check if there is any clogging
or drain water is polluted.
Unit Check (visual / auditory)
Dust / dirt clogging,
Indoor / outdoor
scratches
Indoor / outdoor Sound
Indoor Dust / dirt, breakage
Vibration, balance
Indoor
Dust / dirt, appearance
Indoor / outdoor Dust / dirt, scratches
Dust / dirt clogging, drain
Indoor
contamination
Indoor Dust / dirt, scratches
Rust, peeling of insulator
Outdoor
Peeling / lift of coat
Inspection method
Wash the heat exchanger when it is
clogged.
Take appropriate measures when
abnormal sound is generated.
Wash the filter with water when it is
contaminated.
Replace it when it is damaged.
Replace the fan when vibration or
balance is terrible.
Brush or wash the fan when it is
contaminated.
Fix or replace them when they are
deformed or damaged.
Clean the drain pan and check the
downward slope for smooth drainage.
Wash them when they are contaminated
or apply repair coating.
Apply repair coating.
‒ 45 ‒
Installation Manual
Maintenance