– 21 –
■
Con
fi
rmation and check
When an error occurred in the air conditioner, an error
code and indoor UNIT No. appear on the display part
of the remote controller.
The error code is only displayed during the operation.
If the display disappears, operate the air conditioner
according to the following “Confirmation of error log”
for confirmation.
Error code
Indoor UNIT No. in
which an error occurred
■
Con
fi
rmation of error log
When an error occurred on the air conditioner,
the error log can be confirmed with the following
procedure.
(The error log is stored in memory up to 4 errors.) The
log can be confirmed from both operating status and
stop status.
3
2
1
1
Push and buttons simultaneously for
4 seconds or more, the following display
appears.
If is displayed, the mode enters in the error log
mode.
• [
01
: Order of error log] is displayed in CODE
No..
• [Error code] is displayed in CHECK.
• [Indoor unit address in which an error occurred]
is displayed in Unit No..
2
Every pushing of
button used to
set temperature, the error log stored in
memory is displayed in order.
The numbers in CODE No. indicate CODE No.
[
01
] (latest)
→
[
04
] (oldest).
REQUIREMENT
Do not push button because all the error log of the
indoor unit will be deleted.
3
After
con
fi
rmation, push button to return
to the usual display.
13
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 re-starting 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 discharge 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.
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