Hitachi RAC-60YH7 Instruction Manual page 24

AF TER SALE SERV ICE AND WARRANTY
WHEN ASK ING F OR SERV ICE, CHECK THE F OLLOWING P OINTS.
C O ND IT IO N
If the rem ote controller is
not transm itting a sig nal.
R em ote controller
display is dim or b lank .)
W hen it does not operate
W hen it does not cool well
W hen it does not hot well
Please contact y our sales ag ent im m ediately if the air conditioner still fails to operate norm ally after the ab ov e
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inspections. Inform y our ag ent of the m odel of y our unit, production num b er, date of installation. Please also
inform him reg arding the fault.
Power supply shall b e connected at the rated v oltag e, otherwise the unit will b e b rok en or could not reach the
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specified capacity .
NO T E:
If the supply cord is dam ag ed, it m ust b e replaced b y the special cord ob tainab le at authoriz ed
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serv ice parts centers.
O n switching on the eq uipm ent, particularly when the room lig ht is dim m ed, a slig ht b rig htness fluctuation
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m ay occur. T his is of no conseq uence.
T he conditions of the local Power S upply C om panies are to b e ob serv ed.
D o the b atteries need replacem ent?
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Is the polarity of the inserted b atteries correct?
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Is the fuse all rig ht?
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Is the v oltag e ex trem ely hig h or low?
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Is the circuit b reak er "O N "?
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Is the setting of operation m ode different from other indoor
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units?
Is the air filter b lock ed with dust?
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D oes sunlig ht fall directly on the outdoor unit?
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Is the air flow of the outdoor unit ob structed?
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A re the doors or windows opened, or is there any source of
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heat in the room ?
Is the set tem perature suitab le?
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A re the air inlets or air outlets of indoor and outdoor units
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b lock ed?
Is the fan speed "L O W " or "S IL E N T "?
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No te s
In q uiet operation or stopping the operation, the following phenom ena
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m ay occassionally occur, b ut they are not ab norm al for the operation.
(1 ) S lig ht flowing noise of refrig erant in the refrig erating cy cle.
(2 ) S lig ht rub b ing noise from the fan casing which is cooled and then
g radually warm ed as operation stops.
T he odor will possib ly b e em itted from the room air conditioner b ecause
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the v arious odor, em itted b y sm ok e, foodstuffs, cosm etics and so on,
stick s to it. S o the air filter and the ev aporator reg ularly m ust b e cleaned
to reduce the odor.
C HEC K T HE F O LLO W ING P O INT S
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