Regular Inspection - Hitachi airHome 400 DJ Series Operation Manual

Regular Inspection

PLEASE CHECK THE FOLLOWING POINTS BY QUALIFIED
SERVICE PERSONNEL EITHER EVERY HALF YEARLY OR
YEARLY. CONTACT YOUR SALES AGENT OR SERVICE
SHOP.
Is the earth line disconnected or
1
broken?
Is the mounting frame seriously
2
affected by rust and is the outdoor
unit tilted or unstable?
Is the plug of power line fi rmly
plugged into the socket?
3
(Please ensure no loose contact
between them).
AFTER SALE SERVICE AND
WARRANTY
WHEN ASKING FOR SERVICE, CHECK
THE FOLLOWING POINTS
CHECK THE
CONDITION
FOLLOWING POINTS
Do the batteries need
●
If the remote controller is
replacement?
not transmitting a signal.
Is the polarity of the inserted
●
Remote controller
batteries correct?
display is dim or blank.)
Is the fuse all right?
●
Is the voltage extremely high
●
or low?
When it does not cool
Is the circuit breaker "ON"?
●
well
Is the setting of operation
●
mode different from other
indoor units?
Is the pre-fi lter blocked with
●
dust?
Does sunlight fall directly on
●
the outdoor unit?
Is the air fl ow of the outdoor
●
unit obstructed?
Are the doors or windows
●
opened, or is there any
When it does not cool well
When it does not hot well source of heat in the room?
Is the set temperature
●
suitable?
Are the air inlets or air
●
outlets of indoor and outdoor
units blocked?
Is the fan speed "LOW" or
●
"SILENT"?
FrostWash Operation
It does not wash when outside
temperature is less than about 1
degrees Celsius or more than 43
degrees Celsius.
It does not wash when the humidity
in the room is about 30% or less or
FrostWash
about 70% or more.
Operation does
When "FrostWash" is done by
not start
operating a remote controller, it does
not wash when the room temperature
is less than about 10 degrees Celsius
or more than about 32 degrees
Celsius.
When 60 minutes after the end of
"FrostWash", "FrostWash" is not
operated for product protection.
It is the sound that the internal
Noise occurred
machine is infl ated and contracted
during FrostWash
by the temperature change and the
operation
fi n of the heat exchanger is frozen
and thawed
Repeat for 1 second on and 1 second
off for 10 seconds
Because "FrostWash" can not work
when operating the "FrostWash" with
remote controller.
The air conditioner is operating
●
Outside air temperature, room
●
(Clean
temperature and room humidity are
Function Lamp)
not suitable for "FrostWash"
blinks
It has not been over 60 minutes since
●
the end of "FrostWash"
Repeat for 4 seconds on and 1 second
off for 15 seconds
Because FrostWash has not been done
for a long time.
Operate the remote controller to
operate "FrostWash".
Mold Guard Operation
If the air conditioner operation is stopped
after heating operation, Mold Guard will
not operate.
If the air conditioner has operated in
cooling and drying mode, including
auto mode, for less than 10 minutes,
Mold Guard
the Mold Guard operation will not start
operation does
even if the air conditioner is in off mode.
not start
If operation of the air conditioner is stop
by OFF Timer or GoodSleep Timer, the
Mold Guard will not operate.
If ON Timer is set and on time is within
about 2 hours, the Mold-Guard will not
operate.
(Clean Function Lamp) on the
indoor unit lights up during Mold
During Mold
Guard operation. If Mold Guard
Guard
operation stop at middle point,
FrostWash and Filter sign indicator
will turn off.
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