Haier HSU--12HD03/R2 Service Manual page 35

Indoor unit
5
make water
water when
Compressor
6
doesn't work
compressor
The outdoor
fan motor
7 and
the outdoor
compressor
don't work
compressor
The outdoor
fan motor
8
runs but the
compressor
motor works,
doesn't run
Drain pan, drain hose. Check
Oriented
whether the indoor unit is installed
wind panel
horizontal, drain hose of indoor
or drain
unit is leveled off ,the hole is over
pan makes
high
and walled up drain pipe is
used
Indoor P.C. board , startup capacity
running for compressor, overheat protector,
indicator compressor. Check the 1# and 2#
lights up terminal block of indoor unit
but whether it has single AV if not then
examine the power relay of P.C.
doesn't board
work protector, startup capacity for
compressor and compressor itself
Remote controller
capacitor of 2500UF 7805
outdoor heat exchanger sensor
and ambient temperature sensor.
The
Use temperature key of remote
running
controller to watch how much
lamp of air
times the timing lamp glitters and
conditioner
judge what's the trouble .If there is
lights but
no glitter we should check the
terminal block to see if there is AC
fan motor
voltage about 220V.Check the
and
electrolytic capacitor of 2500UF
and see if there is current about
don't run
310V.Examine the output of the
7805 and switch transformer
together with the resistance of the
Power model switch transformer
The running
compressor. Check the temperature key
lamp of air
of remote controller to watch how many
conditioner
times the timing lamp glitters and judge
lights ,the
what's the trouble. Examine the two
outdoor fan
ends of PN to see if there is DC voltage
about 310V.Four group DC power
but the
resource of 15V.Check the triphase coil
compressor
assembly of the compressor and see if
doesn't work
31
Air Conditioner
filter and drain hose is dirty
underwater
else check overheat
electrolytic
sensor.
they are the same.
47
Edition:2006/1/10
invariable
drain pan,
frequency
drain hose
split unit
Indoor P.C.
board , startup
capacity for
invariable
compressor,
frequency
overheat
split unit
protector,
compressor,av
ometer
Remote
controller ,elec
trolytic
capacitor of
2500UF
Little split
7805
unit of
outdoor heat
frequency
exchanger
conversion
sensor and
ambient
temperature
sensor
avometer
Power model
Little split
switch
unit of
transformer
frequency
compressor
conversion
avometer