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2
SELF-CHECK FOR CN30
LD301
LD302
LD303
CONTROL P.W.B.
:OFF
RED
L
D
3
0
2
L
D
3
0
1
(3)
(2)
(1)
L
D
3
0
3
RED
:OFF
L
D
3
0
1
RED RED
L
D
3
0
2
RED
L
D
3
0
3
ONCE
:OFF
RED
L
D
3
0
2
L
D
3
0
1
RED
L
D
3
0
3
RED
OVERLOAD
(1)
OVERLOAD
(2)
OVERLOAD
(3)
RED
SELF-DIA-
GNOSIS NAME
NORMAL
OPERATION
DETAILS
MAIN CHECK
POINT
COMPRESSOR OPERATION
SET
VALUE
TIME
THE ROTATION SPEED IS AUTO-
MATICALLY CONTROLLED TO PROTECT
THE COMPRESSOR IN THE OVERLOAD
CONDITION.
NOT
MALFUNCTION
THIS SHOWS
AN OVERLOAD
PROTECTION
STATUS.
NOT
MALFUNCTION.
SELF-DIAGNOSIS LIGHTING MODE
:LIGHT
:BLINK
DURING OPERATION
DURING STOP
SELF-DIAGNOSIS LIGHTING MODE
:LIGHT
:BLINK
GNOSIS
NAME
SELF-DIA-
ONCE
2TIMES
3TIMES
4TIMES
5TIMES
6TIMES
7TIMES
9TIMES
10TIMES
11TIMES
12TIMES
13TIMES
NORMAL STOP
NOT MALFUNCTION
・REACTOR DEFECTIVE
RESET STOP
MAIN CHECK
POINT
DETAILS
P.W.B.
PEAK CURRENT
CUT
ABNORMAL LOW
SPEED ROTATION
SWITCHING
FAILURE
OVERLOAD LOWER
LIMIT CUT
OH THERMISTOR
TEMP. RISE
THERMISTOR
ABNORMAL
COMMUNICATIONS
ERROR
ABNORMAL
POWER SOURCE
FAN LOCK
ERROR
EEPROM
READ ERROR
FAN STOP FOR
STRONG WIND
NOT MALFUNCTION
MICROCOMPUTER
CANNOT READ THE
DATA IN EEPROM.
STOPPED
BY
THERMOSTAT
OR
CONTROLLER.
FAN STOP FOR
STRONG WIND
REFER TO THE
SELF-CHECK
REFER TO THE
SELF-CHECK
REFER TO THE
SELF-CHECK
『SELF−CHECK』MANUAL
4.PUSH 『TEST SWITCH』 DURING 1SEC.
PEAK CURRENT CUT
SIGNAL DETECTION
EXCHANGE OF COMPRESSORS
2TIMES
7TIMES
10TIMES
13TIMES
SELF-DIAGNOSIS LIGHTING MODE
:LIGHTING
:BLINKING
『SELF−CHECK』
I
S F
I
N
I
SHED
SELF-DIA-
GNOSIS NAME
CORRECTION CONTENTS
『OUTDOOR FAN MOTOR CHECK』DIAGNOSIS METHOD
※OTHERS CHECK POI
NTS
PLEASE PERFORM 『SELF-CHACK』 WHEN THE LD301
BLINKING 2,3 AND 4 TIMES.
3.PUT THE POWER ON AND OPERATE INDOOR UNIT
WITH THE AIR PURIFYING OPERATION MODE.
5.SELF-CHECK RESULT WILL DISPLAY AT LD303.
※IF FORGET TO CONNECTING THE "CN30", THE
TIMER LAMP OF THE INDOOR UNIT BLINKS
12TIMES.
ABNORMAL DC
VOLTAGE
EEPROM READING
ERROR
EXCHANGE OF ELECTRICAL
CONTROLLING BOX.
EXCHANGE OF ELECTRICAL
CONTROLLING BOX.
EXCHANGE OF ELECTRICAL
CONTROLLING BOX.
1.PUT THE POWER OFF
1.PUT THE POWER OFF.
2.REMOVE THE INDOOR FAN MOTOR'S CONNCTOR
"CN24".
4.MEASURE THE RESISTANCE BETWEEN EACH
TERMINAL OF THE FAN MOTOR CONNECTOR.
NORMAL RESISTANCE BETWEEN EACH TERMINAL
: 20
〜
50
Ω
※WHEN CHECK IS FINISHED, INSERT THE CONNECTOR.
1.
WHEN DISPLAY『REVERSING VALVE DEFECTIVE AT THE INDOOR UNIT.
・CHECK THE REVERSING VALVE CONNECTOR IS CONNECTED OR NOT.
・CHECK THE CONTINUITY OF THE LEAD WIRES.
I
F THE ABOVE POINTS ARE OK BUT FUSE F3 HAS BEEN BLOW,
⇒
CHANGE THE ELECTRICAL CONTROLLING BOX.
2.
『WHEN DISPLAY THE COMMUNICATION ERROR OR THE OUTDOOR DO
NOT RUN AT ALL』.
・PLEASE CHECK THE CONTINUITY AT THE INDOOR OUTDOOR
CONNECTING CABLE.
POWER NOT
COME TO THE
UTDOOR P.W.B.
AIR CLEAN
OPERATION,
・CONNECTING CORD
DIFECTIVE
・FUSION OF F4
(2A,FUSE)
・
THERMISTOR CONNEC-
TING DEFECTIVE
・
THERMISTOR CIRCUIT
・
CABLE IS WRONG
CONNECTED
・
INTERFACE CIRCUIT
OF BETWEEN
NOT ELECTRIFICAL
DEFECTIVE
ABNORMAL COMP-
RESSER CURRENT
・
CHECK THE COMPRESSER
CONNECTOR
・
EXCHANGE OF ELECTRICAL
CONTROLLING BOX.
3.ROTATE THE FAN MOTOR BY HAND AND CHECK
THE FAN MOTOR IS LOCKED OR NOT.
2.REMOVE THE SELF-CHECK CONNECTOR "CN30".
6.PUT THE POWER OFF AND CONNECT THE SELF-
CHECK CONNECTOR "CN30".
TEST SWITCH
OUTDOOR FAN
MOTOR CONNECTOR
IPM
DC VOLTAGE
Lighting mode of the self-diagnosis lamp
Lighting mode of the self-diagnosis lamp
MESUREMENT
POINT(
+
)
DC VOLTAGE
MESUREMENT
POINT(
−
)
RO
TAT
IO
N
SPEED
MICROPROCESSOR WAS
REBOOTED.
COMPRESSOR PEAK
CURRENT WAS BEYOND
MAXIMUM LIMIT.
LOST THE COMPRESSOR
ROTOR POSITION.
SWITCHING FROM LOW
FREQUENCY SYNC START
TO POSITION DETECTION
OPERATION FAILURE.
OVERLOAD PROTECTION
FUNCTION IS
REQUESTING LOWER
SPEED THAN MINIMUM
SPEED OF COMPRESSOR.
・
OUTDOOR UNIT IS EXPO-
SED TO DIRECT SUNLIGHT
OR ITS AIRFLOW BLOCKED
・
THE VOLTAGE IS EXTR-
EMELY LOW
COMPRESSOR OVERHEAT
WAS DETECTED BY
OH THERMISTOR.
・
LEAKAGE OF REFRIGE-
RANT COMPRESSOR OH
THERMISTOR CIRCUIT
・
FAN MOTOR CIRCUIT
ABNORMAL THERMISTOR
VALUE (OPEN OR SHORT) WAS
DETECTED.
COMMUNICATIONS
BETWEEN INDOOR UNIT
AND OUTDOOR UNIT
ARE INTERRUPTED.
ABNORMAL POWER
SOURCE WAS DETECTED.
・
POWER SOURCE
CABLE IS WRONG
・
CONNECTED SYSTEM
POWER MODULE
OUTDOOR FAN RPM
IS NOT ROTATE AS
INTENDED RPM.
P.W.B.
・
FAN MOTOR
・
FAN MOTOR CIRCUIT
2SEC.
・・LIGHTS FOR 0.25
SEC. AT INTERVAL
OF 0.25 SEC.
・・LIGHTS FOR 0.25
SEC. AT INTERVAL
OF 0.25 SEC.
※
EXAMPLE OF
BLINKING
(5 TIMES)
※
EXAMPLE OF
BLINKING
(5 TIMES)
(
(
(
(
2SEC.
(DC350V)
D A N G E R
CUT THE POWER SOURCE AND WAIT
MORE THAN 10 MINUTES BEFORE
SERVICE WORK.
CONFIRM THE DC VOLTAGE AT THE
MEASURING POINT SHOWN IN FIGURE
MUST BE LESS THAN 10V.