Maintenance - Haier HPU-18C03/NAF Operation Manual

Maintenance

Cleaning of the unit
The machine is adaptive in following
Maximum:D.B/W.B
Indoor
Minimum:D.B/W.B
Cooling
Maximum:D.B/W.B
Outdoor
Minimum:
Maximum:D.B
Indoor
Minimum:
Heating
Maximum:D.B/W.B
Outdoor
Minimum:D.B/W.B
situation
o o
32 C/23 C
o o
18 C/14 C
o o
43 C/26 C
o
D.B 18 C
o
27 C
o
D.B 15
C
o o
24 C/18 C
o o
7 - C/-8 C
Trouble shooting
Phenomenon Cause or check points
I
s the air filter dirty?normally it should be cleaned every 15 days.
Are there any ostacles before inlet and outlet?
Is temperature set correctly ?
Poor cooling
Are there some doors or windows left open?
or poor
Is there any direct sunlight through the window during the cooling
heating
operation(use curtain)
Are there too much heat sources or too many people in the room
during cooling operation?
IS the horizontal flap direction right?
It should be kept horizontal or upward during cooling operation
while set horizontal or downward during heating operation.
Water leakage The air filter is dirty ;The unit is tilt installed.
During unit operation or at stop, a swishing or gurgling noise may be
A swishing or
heard .At first 2-3 minutes after unit start, this noise is more noticeable
gurgling noise
(This noise is generated by refrigerant flowing in the system.)
is heard
During unit operation, a cracking noise may be heard.This noise is
A cracking
generated by the casing expanding or shrinking because of
noise is heard
temperature changes.
The is because the system circulates smells from the interior air
Smells are
such as the smell of furniture, paint, cigarettes.
generated
Mist or steam
During COOL or DRY operation, indoor unit may blow out mist.
are blown out
This is due to the sudden cooling of indoor air.
To avoid frosting on the heat exchanger of the indoor unit, the air
COOL mode
changes to FAN conditioner sometimes changes to FAN mode in COOL operation.but
mode
immediately it will change back to COOL mode.
automatically
When unit is stopped, it won't restart immediately unit 3 minutes have
The system
elapsed to protect the system.When the electric plug is pulled out
does not restart
and reinserted, the protection circuit will work for 3 minutes to protect
immediately
the air conditioner.
In HEAT mode,
This is because the frost on the heat exchanger of the outdoor unit
the outdoor unit
is melting (in COOL operation) .
generates water
or steam.
For the sake of removing the remaining heat, the fan motor of
the fan motor of
indoor unit will
indoor unit will continue running for some time after the heat
continue running
operation's stop.
even though the
HEAT operation
is stopped.
In DRY mode, when room temperature becomes lower than temp.
In DRY mode,
setting +2℃ unit will run intermittently at LOW speed regardless
fan speed can't
of FAN setting.
be changed.
Check the power supply: make sure the rated voltage is supplied.
None of the
Check if the residual current circuit breaker trip?(make sure cut off
units operates
the power supply off and contact the service station immediately. )
In consideration of the temperature difference in the room,
The temperature
the air conditoner will automatically compensate the temperature
displayed on the
In order to improve the comfortableness .therefore it is normal
control panel is
phenomenon.
different from
the temperature
detected by
the user
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