-
-
'14•SRK-T-153
'09•SRK-SM-087D
(8) Checking the indoor electrical equipment
(a) Indoor PCB check procedure
(b) Outdoor unit
Is there voltage between terminal
blocks
①
and
②
? (AC 220V)
Indoor electrical components
are normal.
Is the voltage between terminal
blocks
②
and
③
oscillating between
DC 0 and 20V?
Inspect
If the package components
are not damaged, replace the
fuse and perform an operation
check again.
Compressor stop.
power source
for outdoor unit.
Replace indoor PCB.
Is the fuse burnt out? (3.15 A)
NO
YES
YES
NO
YES
NO
(b) Indoor unit fan motor check procedure
(i) Indoor PCB output check
① ④
⑤
(ii) Fan motor resistance check
⑥
⑤
④
③
②
①
⑥
⑤
④
③
②
①
FM
I
DC15V
Indoor PCB
DC 308~336V
DC several V
(4~6 V)
CNU
(–)
GND
Blue
Yellow
White
Blac
k
Red
Sensor
Operation
mode
Phenomenon
Shortcircuit
Disconnected wire
Heat exchanger
sensor
Cooling
Ourdoor air
temperature sensor
Cooling
Discharge pipe
sensor
All modes
Measuring point
Resistance when normal
① − ③
−
④ − ③
−
Measuring
point
Resistance when
normal
① − ③
④ − ③
⑤ − ③
k
1)
2)
3)
'09•SRK-DB-087D
(9) How to make sure of wireless remote control
(C) Power transistor inspection procedure
[Use a tester with a needle indicator for the inspection. (Do not use a digital tester. Check in the AC 300 volt range.)]
(1) If there is a self-diagnosis display, inspect the compressor system (burns, wiring mistakes, etc.) If no problems are found, check the
output of the power transistor.
(2) Output inspection procedure
Disconnect the terminals for the compresseor.
If an output such as the one shown in the figure on the below can be measured, the power transistor and the circuit board for the
outdoor unit are normal.
(Example)
RUN light : ON
TIMER light: 2 time flash
Measure in this section
Operation SW ON
8~10 sec.
1 sec.
1 sec.
3 min.
3 min.
1 sec.
0
Output voltage
(ACV)
The figare below shows the SRK series.
of
indoor unit
Replace the display
of indoor unit.
Summary of Contents for SRK10CNS
Page 46: ... 45 14 SRK T 153 3 Wireless remote control Unit mm 60 17 3 150 Unit mm 60 17 3 150 ...
Page 71: ... 70 14 SRK T 153 4 Troubleshooting procedure If the air conditioner runs NO YES 71 ...
Page 79: ... 78 14 SRK T 153 ...
Page 83: ... 82 14 SRK T 153 4 6 10641 ...
Page 87: ... 86 14 SRK T 153 4 6 10641 ...
Page 91: ... 90 14 SRK T 153 4 6 10641 ...
Page 95: ... 94 14 SRK T 153 4 6 10641 ...
Page 99: ... 98 14 SRK T 153 4 6 10641 ...
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Page 108: ... 107 14 SRK T 153 MEMO ...
Page 114: ... 113 14 SRK T 153 MEMO ...
Page 117: ... 116 14 SRK T 153 CRBE0290 6 11 9 10 13 14 3 15 12 2 4 8 7 5 1 7 7 PANEL FAN ASSY ...
Page 121: ... 120 14 SRK T 153 CRBE0290 6 11 9 10 13 14 3 15 12 2 4 8 7 5 1 7 7 PANEL FAN ASSY ...
Page 125: ... 124 14 SRK T 153 CRBE0290 6 11 9 10 13 14 3 15 12 2 4 8 7 5 1 7 7 PANEL FAN ASSY ...
Page 129: ... 128 14 SRK T 153 CRBE0290 6 11 9 10 13 14 3 15 12 2 4 8 7 5 1 7 7 PANEL FAN ASSY ...
Page 133: ... 132 14 SRK T 153 CRBE0290 6 11 9 10 13 14 3 15 12 2 4 8 7 5 1 7 7 PANEL FAN ASSY ...
Page 137: ... 136 14 SRK T 153 CRBE0290 6 11 9 10 13 14 3 15 12 2 4 8 7 5 1 7 7 PANEL FAN ASSY ...
Page 141: ... 140 14 SRK T 153 CRBE0221 12 16 17 1 2 3 5 6 7 8 9 10 13 16 14 15 4 11 PANEL FAN ASSY ...