Haier HSU12VHG-B, Service Manual

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48
Domestic air conditioner
Introduction
Trouble shooting
Normal
Performance
inspection
Noise is heard
Phenomenon Cause or check points
The system
immediately.
Smells are
generated.
Mist or steam are
Multiple
check
Poor cooling
When unit is stopped, it won't restart
elapsed to protect the system.
When the electric plug is pulled out
and reinserted, the protection circuit
During unit operation or at stop,
a swishing or gurgling noise may
(This noise is generated by
refrigerant flowing in the system.)
During unit operation, a cracking
noise may be heard.This noise is
temperature changes.
Should there be a big noise from
filter may be too dirty.
This is because the system
circulates smells from the interior
During COOL or DRY operation,
This is due to the sudden cooling
Is power plug inserted?
Is there a power failure?
Is fuse blownout?
Is the air filter dirty?
Are there any obstacles before
Is temperature set correctly?
Are there some doors or
Is there any direct sunlight
through the window during the
Are there too much heat sources
or too many people in the room
In dry mode, fan
speed can’t be
changed.
In DRY mode, when room temperature
2
o
C,unit will run
regardless of FAN setting.
during cooling operation?
cooling operation?(Use curtain)
windows left open?
inlet and outlet?
Normally it should be cleaned
every 15 days.
intermittently at LOW speed
becomes lower than temp.
indoor unit may blow out mist.
of indoor air.
air such as the smell of furniture,
paint, cigarettes.
air flow in unit operation, air
generated by the casing expanding
or shrinking because of
be heard.At first 2-3 minutes after
unit start, this noise is more noticeable.
will work for 3 minutes to protect the
air conditioner.
immediately until 3 minutes have
Cautions
3. If the fuse of indoor unit on PC board is
it with the type of T. 3.15A/ 250V outdoor
broken,change it with the type of T.25A/250V
Do not obstruct or cover the ventilation
conditoner.Do not put fingers
inlet/outlet and swing louver.
Do not allow children to play with the air conditioner
case should children be allowed to sit on the outdoor unit.
The refrigerating circuit is leak-proo f.
1.Applicable ambient temperature range:
Specifications
The machine is adaptive in following situation
The power plug and connecting cable acquired the local
2. If the power supply cord is damaged, it must be replaced
manufacturer qualified person.
4. The wiring method should be in line with the local wiring
5. After installation, the power plug should be easily reached.
6. The waste battery should be disposed properly.
7. The appliance is not intended for use
persons without supervision.
8. Young children should be supervised
with the appliance.
9. Please employ the proper power plug,
cord.
11.In order to protect the units,please turn
30 seconds later, cutting off the power.
10.
Cooling
Indoor
Maximum:D.B/W.B
Maximum:D.B/W.B
D.B
Maximum:D.B
D.B
Minimum:D.B/W.B
Maximum:D.B/W.B
Minimum:D.B/W.B
Outdoor
Indoor
Outdoor
Heating
32
o
C/23
o
C
24
o
C/18
o
C
o
C/-8
o
C
43
o
C/26
o
C
18
o
C
27
o
C
21
o
C/15
o
C
Outdoor
Maximum:D.B/W.B
Minimum:D.B
24
o
C/18
o
C
-15
o
C (INVERTER)
0
o
C
7 -
Minimum:
Minimum:
grille of the air
or any other things into the
.In no
or its service agent or a similar
broken,please
. If the fuse of
standard.
by young children or
to ensure that they
which fit into the
must have
off the A/C first,
Before asking for service, check the following
first.
blown out.
does not restart
by the
change
unit is
infirm
do not play
power supply
attestation.
and at least
HSU12HG(DB)-SM