24-EN
23-EN
– 12 –
EN
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Con
fi
rmation and check
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 ( etc. ) is displayed on the wired remote
controller LCD, inform the dealer of its content as well.
If the air conditioner fails, the timer
off indication will alternately display
the check code and the number of
faulted indoor unit.
Check code
The number of faulted
indoor unit
Troubleshooting history and con
fi
rmation
If the air conditioner fails, you can view the troubleshooting history by following the steps below.
(The troubleshooting history can record at most 4 records.)
The troubleshooting history can be viewed when the air conditioner is on or off.
y
If you view the troubleshooting history in the timer off operation, the timer off will be cancelled.
Step
Operation Instructions
1
Long press the timer off button for more than 10 seconds tillan
indication icon appears, indicating that you have entered the
troubleshooting history mode.
If [ Maintenance overhaul] is displayed, it indicates that you
have entered the troubleshooting history mode.
• The temperature indication displays [01: Troubleshooting
History Order].
• The timer off indication will alternately display [Check Code] and
the faulted [Indoor Unit Number].
2
Press the set button each time, then the recorded troubleshooting
history will be displayed in the order of [01] (newest) to [04]
(oldest).
REQUIREMENT
In the troubleshooting history mode, do not press the menu
button for more than 10 seconds. Otherwise, all troubleshooting
history of the indoor unit will be deleted.
1
2
3
3
After completing the check, press the ON/OFF button to return to
normal mode.
y
It will continue to run if in the running mode. Please press the
ON/OFF button again if in the stop mode.
8
Operations and performance
▼
Check before running
• Check whether the earth wire is cut or disconnected.
• Check whether the air
fi
lter is installed.
• Turn on the circuit breaker 12 hours or more before
starting operation.
▼
3 minutes protection function
3-minutes protection function prevents the air conditioner
from starting for initial 3 minutes after the main power
switch / circuit breaker is turned on for restarting the
air conditioner.
▼
Power failure
Power failure during operation will stop the unit
completely.
• To restart the operation, push the ON/OFF button on
the remote controller.
• Lightning or a wireless car telephone operating
nearby may cause the unit to malfunction. Turn off
the main power switch or circuit breaker and then
turn them on again. Push the ON/OFF button on the
remote controller to restart.
▼
Defrosting operation
If the outdoor unit is frosted during the heating
operation, defrosting starts automatically
(for approximately 2 to 10 minutes) to maintain the
heating capacity.
• The fans in both indoor and outdoor units will stop
during the defrosting operation.
• During the defrosting operation, the defrosted water
will be drained from the bottom plate of the
outdoor unit.
▼
Heating capacity
In the heating operation, the heat is absorbed from
the outside and brought into the room. This way of
heating is called heat pump system. When the outside
temperature is too low, it is recommended to use
another heating apparatus in combination with the
air conditioner.
▼
Protective device
• Stops operation when the air conditioner is
overloaded.
• If the protective device is activated, the unit stops
running, and the operation indicator and check
indicator on the remote controller blink.
▼
If the protective device is activated
• Turn off the circuit breaker and perform a checkup.
Continued running may cause a malfunction.
• Check whether the air
fi
lter is installed. If not, the
heat exchanger may be clogged with dust and water
leakage may occur.
▼
During cooling
• The air intake or discharge of the outdoor unit is
clogged.
• Strong wind continuously blows against the outlet of
the outdoor unit.
▼
During heating
• The air
fi
lter is clogged with a large amount of dust.
• The air intake or discharge of the indoor unit is
clogged.
▼
Do not turn off the circuit breaker
• During the air-conditioning season, leave the circuit
breaker turned on, and use the ON/OFF key on the
remote controller.
▼
Attention to snowfall and freeze on the
outdoor unit
• In snowy areas, the air intake and air discharge
of the outdoor unit are often covered with snow or
frozen up. If snow or freeze on the outdoor unit is
left as it is, it may cause machine failure or poor
warming.
• In cold areas, pay attention to the drain hose so that
it perfectly drains water without water remaining
inside for freeze prevention. If water freezes in the
drain hose or inside the outdoor unit, it may cause
machine failure or poor warming.
▼
Air conditioner operating conditions
For proper performance, operate the air conditioner under the following temperature conditions:
Cooling operation
Outdoor temperature
: –15°C to 46°C (Dry bulb temp.)
Room temperature
: 21°C to 32°C (Dry bulb temp.), 15°C to 24°C (Wet bulb temp.)
[CAUTION]
Room relative humidity – less than 80%. If the air conditioner operates in
excess of this
fi
gure, the surface of the air conditioner may cause dewing.
Heating operation
Outdoor temperature
: –15°C to 15°C (Wet bulb temp.)
Room temperature
: 15°C to 28°C (Dry bulb temp.)
If air conditioner is used outside of the above conditions, safety protection may work.
