Regular Inspection - Hitachi airHome 500 RAK-GH18PCASV Operation Manual

FROSTWASH OPERATION
It does not wash when outside
temperature is less than about 21°C or
more than 43°C.
When "FrostWash" is done by operating
FrostWash
a remote controller, it does not wash
Operation does
when the room temperature is less than
not start
about 21°C or more than about 32°C.
When 60 minutes after the end of
"FrostWash", "FrostWash" is not operated
for product protection.
It is the sound that the internal machine
Noise occurred
is inflated and contracted by the
during FrostWash
temperature change and the fi n of the
operation
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 has operated in
cooling and drying mode, including auto
mode, for less than 10 minutes, the Mold
Guard operation will not start even if the
air conditioner is in off mode.
If operation of the air conditioner is stop
Mold Guard
by OFF Timer or GoodSleep Timer, the
operation does not
Mold Guard will not operate.
start
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
Guard operation. If Mold Guard
During Mold Guard
operation stop at middle point,
FrostWash and Filter sign indicator
will turn off.
The horizontal defl ector remain open.
Room temperature or humidity may rise.
Depending on situation, Mold Guard will
operate with Fan Mode.
When there would be the window near
indoor unit, the water might condense
on the window during Mold Guard. If
Notes
necessary, to cancel Mold Guard.
When after FrostWash operation, the
water inside the indoor unit evaporates
and depending on the room conditions,
may emitted as steam. But this is not
a malfunction. If necessary, to cancel
Mold-Guard.
■ The following phenomena do not indicate unit
failure.
Refrigerant fl ow noise in the pipe or valve
sound generated when fl ow rate is adjusted.
Hissing or fi zzy
sounds
Refrigerant fl ow noise occur during changes
of maximum fan speed to lowest speed.
Noise generated when the unit expands
Squeaking
or contracts due to temperature changes.
noise
Noise generated with the indoor unit fan's
Rustling noise
rpm changing such as operation start times.
Noise of the motorized valve when the unit
Clicking noise
is switched on.
Noise of the ventilation fan sucking in air
present in the drain hose and blowing out
Perking noise
dehumidifying water that had accumulated
in the condensed water collector. For
details, consult your sales agent.
Operation noise changes due to power
Changing
variations according to room temperature
operation noise
changes.
Mist is generated as the air within the
Mist emission
room is suddenly cooled by conditioned air.
Caused as the smells and particles of
smoke, food, cosmetics, etc. present in
Odors
room air become attached the unit and
blown off into the room again.
Actual room temperature may deviate
slightly from the remote controller's
Does not reach
temperature setting depending on the
the temperature
number of people in the room, indoor or
setting
outdoor conditions.

REGULAR INSPECTION

PLEASE CHECK THE FOLLOWING POINTS BY QUALIFIED
SERVICE PERSONNEL EITHER EVERY HALF YEARLY OR
YEARLY. CONTACT YOUR SALES AGENT OR SERVICE
SHOP.
1
2
3
– 11 –
Is the earth line disconnected or
broken?
Is the mounting frame seriously
affected by rust and is the outdoor
unit tilted or unstable?
Is the plug of power line fi rmly
plugged into the socket?
(Please ensure no loose contact
between them).