Troubleshooting - Toshiba RAV-GM901CTP-E Owner's Manual

◆ Check periodically
• If the unit is used for a long time, parts may deteriorate and cause malfunction or bad drainage of dehumidifi ed
water depending on the heat, humidity, or dust.
• In addition to the usual maintenance, it is recommended that you have the unit checked and maintained by the
dealer where you purchased it.
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 effi cient 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 Unit Check (visual / auditory)
Heat exchanger Indoor / outdoor Dust / dirt clogging, scratches
Fan motor Indoor / outdoor Sound
Filter Indoor Dust / dirt, breakage
• Vibration, balance
Fan Indoor
• Dust / dirt, appearance
Air intake /
Indoor / outdoor Dust / dirt, scratches
discharge grilles
Dust / dirt clogging, drain
Drain pan Indoor
contamination
Ornamental panel,
Indoor Dust / dirt, scratches
louvers
• Rust, peeling of insulator
Exterior Outdoor
• Peeling / lift of coat
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Maintenance
Wash the heat exchanger when it is
clogged.
Take appropriate measures when
abnormal sound is generated.
• Wash the fi lter 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.
9

Troubleshooting

Check the points described below before requesting repair.
Symptom
• White, misty, cold air or water
comes out.
• Sometimes the noise of air leaking
Outdoor unit
is heard.
• A noise is heard when the power
is turned on.
• Sometimes a swishing is heard.
Indoor unit
• A clacking sound is heard.
• Discharged air smells unusual.
The unit does not run.
The room does not cool down or warm up.
If you fi nd something unusual even after checking the above, stop running the unit, turn off the circuit breaker, and
inform the dealer where you purchased the product of the product number and symptom. Do not attempt to repair
the unit by yourself as doing so is dangerous. If the check indicator (
controller LCD, inform the dealer of its content as well.
If any of the following occur, stop running the unit immediately, turn off the circuit breaker, and contact the dealer
where you purchased the product.
• The switch does not work properly.
• The circuit breaker often blows out.
• You unintentionally put a foreign object or water inside.
• The unit cannot be run even after the cause of the protective device activation is removed.
• Other unusual conditions are found.
Cause
• The fan of the outdoor unit is automatically
stopped and defrosting is performed.
• The solenoid valve works when defrosting starts
or stops.
• The outdoor unit is preparing for running.
• When the unit starts running, during operation,
or immediately after the unit stops running, a
sound such as water fl owing may be heard, or
the operation sound may become louder for a
couple of minutes immediately after the unit starts
running. This is the sound of the refrigerant fl owing
or the dehumidifi er draining.
• This is a sound generated when the heat
exchanger, etc. expands and contracts slightly due
to temperature change.
• Various smells from the walls, carpet, clothes,
cigarette, cosmetics, etc. adhere to the air
conditioner.
• Has a blackout occurred?
• Has the circuit breaker blown?
• Has the protective device been activated?
(The operation indicator and on the remote
controller are blinking.)
• Is the air intake or discharge of the outdoor unit
clogged?
• Is a door or window open?
• Is the air fi lter clogged with dust?
• Is the air volume set to "Low"? or is the operation
mode set to "Fan"?
• Is the setup temperature appropriate?
, , etc.) is displayed on the remote
26-EN