Toshiba Super MMU-AP0092H Service Manual page 29

NOTE
• 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.
Maintenance List
Part
Heat exchanger
Fan motor
Filter
Fan
Air inlet/outlet grilles
Drain pan
Ornamental panel, louvers
Re-Installation
Ask the dealer or an installation professional to re-install the air conditioner to a new place or move it to
another place and to observe the following items.
If the air conditioner is inappropriately installed by yourself, it may cause electric shock or fire.
Be sure to clean the heat exchanger with pressurized water.
If an commercially detergent (strong alkaline or acid cleaning agent) is used, the surface treatment of the heat
exchanger will be marred, which may degrade the self cleaning performance. For details, contact the dealer.
Check (visual/auditory)
• Dust/dirt clogging, scratches
• Sound
• Dust/dirt, breakage
• Vibration, balance
• Dust/dirt, appearance
• Dust/dirt, scratches
• Dust/dirt clogging, drain
contamination
• Dust/dirt, scratches
• 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.
WARNING
CAUTION
29
Maintenance