Haier HSU12VHJ(DB), Service Manual

Page: 56 / 115

Trouble shooting
Before asking for service, check the following first.
Normal
Performance
inspection
Noise is heard
Phenomenon
Cause or check points
The system does not restart
immediately.
Smells are generated.
Mist or steam are blown out.
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
3.6
o
F,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
becomeslower 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
change it with the type of T. 3.15A/ 250V
outdoor unit is 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-proof.
1.Applicable ambient temperature range:
Specifications
The machine is adaptive in following situation
11 .The power plug and connecting cable
acquired the local attestation.
2. If the power supply cord is damaged, it must be replaced
by the 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
infirm persons without supervision.
8. Young children should be supervised
do not play with the appliance.
9. Please employ the proper power plug,
power supply cord.
12.In order to protect the units,please turn
and at least 30 seconds later, cutting off the power.
10. A breaker should be incorporated into
breaker should be
between
its two contacts should be not less than 3mm.
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
fixed wiring. The
all-pole switch and the distance
must have
off the A/C first,
HSU12/18VHJ(DB) system configration
53