Haier HSU-18LEK03/R2 Service Manual page 46

Trouble shooting
Before asking for service, check the following
first.
Phenomenon
The system
does not restart
immediately.
Noise is heard
Normal
Performance
inspection
Smells are
generated.
Mist or steam are
blown out.
In dry mode, fan
speed can't be
changed.
Poor cooling
Multiple
check
Cause or check points
When unit is stopped, it won't restart
immediately until 3 minutes have
elapsed to protect the system.
When the electric plug is pulled out
and reinserted, the protection circuit
will work for 3 minutes to protect the
air conditioner.
During unit operation or at stop,
a swishing or gurgling noise may
be heard.At first 2-3 minutes after
unit start, this noise is more noticeable.
(This noise is generated by
refrigerant flowing in the system.)
During unit operation, a cracking
noise may be heard.This noise is
generated by the casing expanding
or shrinking because of
temperature changes.
Should there be a big noise from
air flow in unit operation, air
filter may be too dirty.
This is because the system
circulates smells from the interior
air such as the smell of furniture,
paint, cigarettes.
During COOL or DRY operation,
indoor unit may blow out mist.
This is due to the sudden cooling
of indoor air.
In DRY mode, when room temperature
becomes lower than temp.
o
setting+2 C,unit will run
intermittently at LOW speed
regardless of FAN setting.
The circuit breaker switch is "ON",but
not "off"?
Is there a power failure?
Is fuse blownout?
Is the air filter dirty?
Normally it should be cleaned
every 15 days.
Are there any obstacles before
inlet and outlet?
Is temperature set correctly?
Are there some doors or
windows left open?
Is there any direct sunlight
through the window during the
cooling operation?(Use curtain)
Are there too much heat sources
or too many people in the room
during cooling operation?
Cautions
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.
Specifications
The refrigerating circuit is leak-proof.
The machine is adaptive in following situation
1.Applicable ambient temperature range:
Indoor
Cooling
Outdoor
Indoor
Heating
Outdoor
Outdoor
(INVERTER)
2. If the power supply cord is damaged, it must be replaced
or its service agent or a similar
manufacturer
3. If the fuse of indoor unit on PC board is
it with the type of T. 3.15A/ 250V
broken,change it with the type of T.25A/250V.
The fuse is must be replaced by the manufacturer or its service
agent or a similar qualified person.
4. The wiring method should be in line with the local wiring
5. The waste battery should be disposed properly.
6. This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of appliance by a person
responsible for their safety.
7. Children should be supervised to ensure that they do not play with
the appliance.
8.In order to protect the units,please turn
30 seconds later, cutting off the power.
44
System Configration
grille of the air
or any other things into the
.In no
o o
Maximum:D.B/W.B
32 C/23 C
o o
Minimum:D.B/W.B
21 C/15 C
o o
Maximum:D.B/W.B 4 C/26 C
o
Minimum: D.B 18 C
/
Maximum:D.B
/
Minimum: D.B
/
Maximum:D.B/W.B
/
Minimum:D.B/W.B
/
Maximum:D.B/W.B
/
Minimum:D.B
qualified person.
broken,please change
. If the fuse of outdoor unit is
off the A/C first,
and at least
Domestic Air Conditioner
by the
standard.