Read Sharp AE-XM24CR (serv.man11) Service Manual online
48
AY-XM7/9/12CR
AY-XPM7/9/12CR
AE-XM18/24CR
AY-XPM7/9/12CR
AE-XM18/24CR
Yes
No
Yes
Yes
Yes
Yes
No
No
No
Yes
No
No
No
No
(Lamp : OFF)
(Lamp : ON)
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Open circuit of the
outdoor thermistor
Replace the
thermistor.
Replace the
Fan motor.
Replace the outdoor control PWB.
Replace the
Compressor.
Replace the
Power module.
Fix the power
module with
screws securely.
Replace the
current
transformer
Connect CN15.
Connect CN6.
Overheat of the
compressor
Is CN9 connected ?
Is CN9B connected ?
Is CN1 connected ?
Is CN7 connected ?
Is CN16 connected ?
Is CN14 connected ?
Replace the outdoor
Power supply P.W.B.
Check the voltage
(18V) between CN14
3 and 4 ? )
Replace the Power
module
Connect CN9
Connect CN9B
Connect CN91
Connect CN7
Connect CN16
Connect CN14
Replace the
outdoor relay P.W.B.
Check the voltage
(13V) between CN9
2 and 3 ? )
Replace the Power
module
AC overcurrent
Rotation error of
the compressor
Power module
(IPM) abnormality
Abnormal
AC current
Is the winding of
the current
transformer
broken ?
Is the resistance
value of the
winding in the
current
transformer ?
720
Ω
Open circuit of
serial signal line
Short circuit of
serial signal line
Power factor
module (AF1) error
Is the Power factor
module in a state
of flaoting from the
heat sink ?
Is the resistance
value among the
terminal of the
Power factor
module 0
Ω
?
Fix the Power
factor module with
screws secuely
Replace the Power
factor module
Are two or three
lamps switched
off ?
Is CN15
connected ?
Is CN6
connected ?
Is the resistance
value of the
thermistor for
the compressor
(TH1), heat ex-
changer (TH2)
or outdoor
temperature
correct (TH3)
or suction (TH4) ?
Is the outdoor
fan motor
operating ?
Is the resistance
value of the winding
in the fan motor
∞
?
The cycle is
abnormal.
The compressor
is abnormal.
Is each of the
resistance values
among the
terminals of the
power module
0Ω
?
P - U, N - U
P - V, N - V
P - W, N - W
Is the power
module in a state
of floating from
the heat sink ?
Inspect the
compressor,
heat exchanger
and piping.
A
Replace the outdoor
Power supply P.W.B.
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