Haier HPU-36CA03T3 Operation Manual - Page 18

Trouble, shooting

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• Trouble shooting Followings are not problems Sound of water flowings are not problems. 11 During unit start and operation or at stop, a swishing or gurgling noise may be heard. This noise is generated by refrigerant flowing in the system. Sound of cracking is heard. During unit operation, a cracking noise may be heard. This noise is generated by the casing expanding or shrinking because of temperatuer changes. Smells are generated. This is because the system circulates smells from the interior air such as the smell of cigarettes or the painting on the unit. During operation, white fog or steam comes out of indoor unit. When unit is running at places like restaurant where dense edible oil fumeis always exist, this will happen. In cooling operation, unit switches to fan To prevent frost from accumulating on indoor heat operation. exchanger, unit will switch to fan operation for a while then resume cooling operation. Unit will not restart after stop. Won't start? P , 9 22- 1 Though ON/OFF button is set to ON, unit won't resume cooling,dry or heating operation in 3 min after it is stopped, this is because of 3- min-delay protection circuit. [kr] .. -,. Please wait 3 minutes No outlet air or fan speed can't be changed in Unit will reduce fan speed repeatedly and automatically dry mode. if room temp. is too low in dry operation. In heating operation, water or steam are blown out of indoor unit. ( ri m - ,s. ' ')'s This occurs when frost accumulated on the outdoor unit is removed. (during defrosting operation) Illllllllllllllllll = . In heating operation, indoor fan won't stop even After unit stops, indoor fan will go on running until indoor if unit is stopped. unit cools down. 16

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•
Trouble
shooting
Followings
are
not
problems
Sound
of
water
flowings
are
not
problems.
11
During
unit
start
and
operation
or
at
stop,
a
swishing
or
gurgling
noise
may
be
heard.
This
noise
is
generated
by
refrigerant
fl
owing
in
the
system.
Sound
of
cracking
is
heard.
During
unit
operation,
a
cracking
noise
may
be
heard.
This
noise
is
generated
by
the
casing
expanding
or
shrinking
because
of
temperatuer
changes.
Smells
are
generated.
This
is
because
the
system
circulates
smells
from
the
interior
air
such
as
the
smell
of
cigarettes
or
the
painting
on
the
unit.
During
operation,
white
fog
or
steam
-
comes
out
of
indoor
unit.
When
unit
is
running
at
places
like
restaurant
where
dense
edible
oil
fumeis
always
exist,
this
will
happen.
In
cooling
operation,
unit
switches
to
fan
operation.
To
prevent
frost
from
accumulating
on
indoor
heat
exchanger,
unit
will
switch
to
fan
operation
for
a
while
then
resume
cooling
operation.
Unit
will
not
restart
after
stop.
Won't
start?
P
or
,
9
2-
21
Though
ON/OFF
button
is
set
to
ON,
unit
won't
resume
cooling,dry
heating
operation
in
3
min
after
it
is
stopped,
this
is
because
of
3-
min
-delay
protection
circuit.
[kr]
..
-,.
Please
wait
3
minutes
No
outlet
air
or
fan
speed
can't
be
changed
in
dry
mode.
Unit
will
reduce
fan
speed
repeatedly
and
automatically
if
room
temp.
is
too
low
in
dry
operation.
In
heating
operation,
water
or
steam
are
blown
out
of
indoor
(
ri
m
This
occurs
when
frost
accumulated
on
the
outdoor
unit
is
removed.
unit.
—
(during
defrosting
operation)
Illllllllllllllllll
=
‘
')'s
,s.
.
In
heating
operation,
indoor
fan
won't
stop
even
if
unit
is
stopped.
After
unit
stops,
indoor
fan
will
go
on
running
until
indoor
unit
cools
down.
16