5
Indoor unit
make water
Oriented
wind panel
or drain
pan makes
water when
used
Drain pan, drain hose. Check
whether the indoor unit is installed
horizontal, drain hose of indoor
unit is leveled off ,the hole is over
high ˈfilter and drain hose is dirty
and walled upǃdrain pipe is
underwaterDŽ
drain pan,
drain hose
invariable
frequency
split unit
6
Compressor
doesn’t work
running
indicator
lights upˈ
but
compressor
doesn’t
work
Indoor P.C. board , startup capacity
for compressor, overheat protector,
compressor. Check the 1# and 2#
terminal block of indoor unit
whether it has single AVˈif not then
examine the power relay of P.C.
board ˈelse check overheat
protector, startup capacity for
compressor and compressor itself
Indoor P.C.
board , startup
capacity for
compressor,
overheat
protector,
compressor,av
ometer
invariable
frequency
split unit
7
The outdoor
fan motor
and
compressor
don’t work
The
running
lamp of air
conditioner
lights but
the outdoor
fan motor
and
compressor
don’t run
Remote controller ǃelectrolytic
capacitor of 2500UFǃ7805ǃ
outdoor heat exchanger sensor
and ambient temperature sensor.
Use temperature key of remote
controller to watch how much
times the timing lamp glitters and
judge what’s the trouble .If there is
no glitter we should check the
terminal block to see if there is AC
voltage about 220V.Check the
electrolytic capacitor of 2500UF
and see if there is current about
310V.Examine the output of the
7805 and switch transformer
together with the resistance of the
sensor.
Remote
controller ,elec
trolytic
capacitor of
2500UFǃ
7805ǃ
outdoor heat
exchanger
sensor and
ambient
temperature
sensorǃ
avometer
Little split
unit of
frequency
conversion
8
The outdoor
fan motor
runs but the
compressor
doesn’t run
The running
lamp of air
conditioner
lights ,the
outdoor fan
motor works,
but the
compressor
doesn’t work
Power modelǃswitch transformerǃ
compressor. Check the temperature key
of remote controller to watch how many
times the timing lamp glitters and judge
what’s the trouble. Examine the two
ends of PN to see if there is DC voltage
about 310V.Four group DC power
resource of 15V.Check the triphase coil
assembly of the compressor and see if
they are the same.
Power modelǃ
switch
transformerǃ
compressorǃ
avometer
Little split
unit of
frequency
conversion
Air Conditioner
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