Sharp AY-A184 Service Manual / Specification ▷ View online
17
AY-A184E
AY-A244E
AE-A184E
AE-A244E
AY-A244E
AE-A184E
AE-A244E
Table Y-7(AY-A244E)
Step
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Output for outdoor unit
Lamps
RED
YELLOW
Indoor
Fan motor
Louver
OFF
Compressor
Reverse Valve
Ootdoor Fan Motor
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
(Back to step 1)
OFF
OPEN
ON
D
OFF
Flikering
OFF
M
OFF
ON
ON
L
CLOSE
ON
ON
D
OFF
ON
UL
OFF
ON
ON
H
OFF
ON
ON
M
OFF
ON
ON
L
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
1
2
3
4
5
5
1
2
3
4
5
: 7˚C Room temp. 42˚C ON
7˚C ( Room temp.) or (Room temp.) 42˚C OFF
7˚C ( Room temp.) or (Room temp.) 42˚C OFF
: –2˚C Pipe temp. 42˚C ON
–2˚C Pipe temp. or (Pipe temp.) 42˚C OFF
–2˚C Pipe temp. or (Pipe temp.) 42˚C OFF
: 0.1V (ANI2 INPUT VOLTAGE) 0.45V ON
(0.1V ANI2 INPUT VOLTAGE) or (ANI2 INPUT VOLTAGE) 0.45V OFF
(0.1V ANI2 INPUT VOLTAGE) or (ANI2 INPUT VOLTAGE) 0.45V OFF
: When Power on start is effective, Timer LED(yellow) is OFF.
: When AUTO RESTART is effective, Operation LED(red) is OFF, and Timer LED(yellow) is ON.
18
AY-A184E
AY-A244E
AE-A184E
AE-A244E
AY-A244E
AE-A184E
AE-A244E
TROUBLESHOOTING GUIDE OF CONTROL CIRCUIT
measure the secondary voltage
of transformer.
of transformer.
YES
NO
YES
NO
The machine does not function
at all with remote controller and
switches on the indoor unit.
at all with remote controller and
switches on the indoor unit.
Using a tester, measure the
voltage between anodes of D1
and D2 on the PWB ass'y 1.
voltage between anodes of D1
and D2 on the PWB ass'y 1.
Is the measure dvalue
approx. 14.7 Vac ?
Replace the PWB with a new
one.
one.
Is the 2.5A fuse down ?
Replace the fuse and varistor
with new ones.
with new ones.
Replace the ftransformer with
a new one.
a new one.
19
AY-A184E
AY-A244E
AE-A184E
AE-A244E
AY-A244E
AE-A184E
AE-A244E
YES
NO
NO
YES
The machine does not function
with remote controller
with remote controller
Push button "O/I" on the
wireless remote controller.
wireless remote controller.
Is transmitting
indicator of the remote
controller active ?
Is indicator lamp of
indoor unit proper ?
Replace the
PWB with a
new one.
PWB with a
new one.
Does beep sound
from the indoor unit ?
Does connector
CN103 connect in place ?
Using a tester,
measure the voltage
between terminals
of resistor R30
on the PWB ass'y.
measure the voltage
between terminals
of resistor R30
on the PWB ass'y.
Push the button
"O/I".
"O/I".
Are batteries of the
wireless remote controller
proper ?
Replace the batteries
with new ones.
with new ones.
Replace the wireless
remote controller.
remote controller.
When the signal is
received, does the voltage
change ?
Replace the PWB with a new
one.
one.
PWB is normal.
Inspect the outdoor unit.
Inspect the outdoor unit.
NO
YES
YES
NO
YES
Replace the display unit
with a new one.
with a new one.
Connect the
connector
properly.
connector
properly.
NO
YES
NO
20
AY-A184E
AY-A244E
AE-A184E
AE-A244E
AY-A244E
AE-A184E
AE-A244E
For AY-A184E/AE-A184E
The room is not cooled at all
or not cooled.
The compressor does not operate.
or not cooled.
The compressor does not operate.
Measure resistances of TH1 and TH2.
The control circuit is normal.
The compressor may be defective.
The running capacitor may be defective.
Refrigerant may be leaked.
The outdoor fan motor may be defective.
The outdoor fan motor capacitor may be defective.
The compressor may be defective.
The running capacitor may be defective.
Refrigerant may be leaked.
The outdoor fan motor may be defective.
The outdoor fan motor capacitor may be defective.
Push the button "TEST RUN" on
the indoor unit, and wait 3 minutes.
the indoor unit, and wait 3 minutes.
Is the voltage
between terminal "N" and
"1" of the terminal board the
power supply voltage ?
Are the resistances
conformed Fig. 1 ?
Replace the thermistor ass'y with a new one.
NO
YES
YES
NO
Replace the PWB ass'y with a new one.
0
20
40
60
80
100
120
140
160
180
K
0
10
20
30 40˚C
-10
CHARACTERISTIC OF TH1 & TH2
Fig. 1
10˚C
30K
30K
Using a tester, measure voltage at
the terminals on the terminal board.
the terminals on the terminal board.
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