Troubleshooting - Toshiba RAV-HM301MUT-E Mode D'emploi

8

Troubleshooting

Check the points described below before requesting repair.
Symptom
• White, misty, cold air or water comes out
Outdoor unit
• Sometimes the noise of air leaking is heard.
• A noise is heard when the power is turned
on.
• Sometimes a swishing is heard.
• A clacking sound is heard.
Indoor unit
• Discharged air smells unusual.
• Louvers close automatically during heating
The unit does not run
The room does not cool down or warm up.
If there is 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 (
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.
103-EN
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 flowing 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
flowing or the dehumidifier 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.
In the following cases, the louvers close automatically to
reduce the cold air falling from the indoor unit.
• When defrosting during heating operation.
• Immediately after starting heating operation less than 12
hours after turning on the circuit breaker when the outside
temperature is low.
• 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 filter 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 controller LCD, inform the dealer
■
Confirmation and check
If a problem occurs with the air
conditioner, the OFF timer indicator
alternately shows the check code and
the indoor Unit No. in which the
problem occurred.
■
Troubleshooting history and confirmation
You can check the troubleshooting history with the following procedure if a problem occurs with the air conditioner.
(The troubleshooting history records up to 4 incidents.)
You can check it during operation or when operation is stopped.
• If you check the troubleshooting history during OFF timer operation, the OFF timer will be cancelled.
Procedure
Push the OFF timer button for over 10 seconds and the
indicators appear as an image indicating the
troubleshooting history mode has been entered. If
[ Service check] is displayed, the mode enters in the
troubleshooting history mode.
1
• [01: Order of troubleshooting history] appears in the
temperature indicator.
• The OFF timer indicator alternately shows the [check
code] and the [indoor Unit No.] in which the problem
occurred.
Each time the setting button is pushed, the recorded
troubleshooting history is displayed in sequence.
The troubleshooting history appears in order from [01]
(newest) to [04] (oldest).
2
CAUTION CAUTION
In the troubleshooting history mode, DO NOT push the
Menu button for over 10 seconds, doing so deletes the
entire troubleshooting history of the indoor unit.
After you have finished checking, push the ON/OFF button
to return to the regular mode.
3
• If the air conditioner is operating, it remains operated
even after the ON/OFF button has been pushed.
To stop its operation, push the ON/OFF button again.
– 52 –
Check code
The indoor Unit No. in which
the problem occurred.
Description of operation
1 2 3
104-EN