SELF-DIAGNOSIS LIGHTING MODE
MODEL RAC-E10H2
CUT THE POWER
SOURCE AND WAIT
MORE THAN 10
MINUTES BEFORE
SERVICE WORK.
DO NOT TOUCH THE
OTHER COMPONENTS
WHEN OPERATING THE
SERVICE SWITCH.
PROCEDURE OF REFRIGERANT PUMP
DOWN OR INDEPENDENT OPERATION
OF OUTDOOR UNIT.
1. CUT OFF THE POWER SOURCE
ONCE THEN ON AGAIN.
2. WAIT 1 MINUTE AT LEAST.
3. PRESS THE SERVICE SWITCH
(WHICH IS ON THE PWB) MORE
THAN 1 SECOND.
SERVICE OPERATION WILL BE
STARTED.
TO STOP THIS OPERATION, PRESS
THE SERVICE SWITCH AGAIN (MORE
THAN 1 SECOND).
TO RESUME TO NORMAL OPERATION,
CUT THE POWER SOURCE ONCE THEN
ON AGAIN.
IN ORDER TO PROTECT THE DAMAGE
OF COMPRESSOR, DO NOT OPERATE
MORE THAN 5 MINUTES WITH
SERVICE VALVE CLOSE.
LD303
MAIN P.W.B.
LD302
LD301
IPM
HIC
DANGER
(DC350V)
SERVICE OPERATION
SELF−DIAGNOSIS LIGHTING MODE
L
L
D
D
SELF−DIA−
3
3
0
0
1
2
[1]DURING OPERATION
NORMAL
OPERATION
OVERLOAD
(1)
OVERLOAD
(2)
OVERLOAD
(3)
[2]DURING STOP
NORMAL
STOP
RESET
STOP
1TIME
PEAK
CURRENT
CUT
2TIMES
ABNORMAL
LOW SPEED
ROTATION
3TIMES
SWITCHING
FAILURE
4TIMES
OVERLOAD
LOWER
LIMIT CUT
5TIMES
OH THERMISTOR
TEMP.RISE
6TIMES
THERMISTOR
ABNORMAL
7TIMES
ACCELERATION
FAILURE
8TIMES
COMMUNICA−
TIONS ERROR
9TIMES
ABNORMAL
POWER
10TIMES
SOURCE
FAN LOCK
ERROR
12TIMES
EEPROM
READ
13TIMES
ERROR
※EXAMPLE OF
BLINKING (5 TIMES)
VICE SWITCH
- 76
-
:LIGHT
DETAILS
MAIN CHECK POINT
LD303(RED)LIGHTS.
COMPRESSOR
NOT MALFUNCTION
OPERATION
(1)
(2)
SET
VALUE
(3)
THIS SHOWS AN
TIME
OVERLOAD PROTECTION
THE ROTATION SPEED IS
STATUS.
AUTOMATICALLY CONT−
ROLLED TO PROTECT THE
COMPRESSOR IN THE
NOT MALFUNCTION.
OVERLOAD CONDITION.
LD303(RED)GOES OFF.
STOPPED BY THERMOSTAT
NOT MALFUNCTION.
OR CONTROLLER.
MICROPROCESSOR WAS
REBOOTED. (IT IS NORMAL
MAIN P.W.B.
1
WHEN POWER SW HAS BEEN
TURNED ON)
COMPRESSOR PEAK
MAIN P.W.B.
1
CURRENT WAS BEYOND
COMPRESSOR
2
MAXIMUM LIMIT.
LOST THE COMPRESSOR
MAIN P.W.B.
1
ROTOR POSITION.
COMPRESSOR
2
SWITCHING FROM LOW
MAIN P.W.B.
1
FREQUENCY SYNC START
COMPRESSOR
TO POSITION DETECTION
2
OPERATION FAILURE.
OUTDOOR UNIT IS EXPOSED TO DIRECT
OUTDOOR UNIT IS EXPOSED TO DIRECT
OUTDOOR UNIT IS EXPOSED TO DIRECT
OVERLOAD PROTECTION
1
1
FUNCTION IS REQUESTING
SUNLIGHT OR ITS AIRFLOW BLOCKED.
FAN MOTOR
LOWER SPEED THAN MINIMUM
2
THE VOLTAGE IS EXTREMELY LOW.
SPEED OF COMPRESSOR.
4
LEAK OF REFRIGERANT
COMPRESSOR OVERHEAT
1
OH THERMISTOR CIRCUIT
WAS DETECTED BY
3
(MAIN P.W.B.)
OH THERMISTOR.
THERMISTOR
ABNORMAL THERMISTOR
1
OF THERMISTOR DEFECTIVE
VALUE (OPEN OR SHORT)
WAS DETECTED.
THERMISTOR CIRCUIT
3
COMPRESSOR WAS NOT
LEAK OF REFRIGERANT
1
ACCELERATED MORE THAN
COMPRESSOR
2
MINIMUM SPEED.
CABLE IS WRONG CONNECTED
COMMUNICATIONS BETWEEN
1
CABLE IS 0PEN
2
INDOOR UNIT AND OUTDOOR
CIRCUIT OF BETWEEN INDOOR
UNIT ARE INTERRUPTED
UNIT AND OUTDOOR UNIT
ABNORMAL POWER SOURCE
ABNORMAL POWER SOURCE
1
CABLE IS WRONG CONNECTED
2
WAS DETECTED
MAIN P.W.B.
3
OUTDOOR FAN RPM IS
FAN MOTOR
1
NOT ROTATE AS INTENDED
FAN MOTOR CIRCUIT
2
RPM
MICROCOMPUTER CANNOT
MAIN P.W.B.
1
READ THE DATA IN EEPROM.
2SEC
:
:BLINK
:OFF
MAIN P.W.B.
3
COMPRESSOR
2
CONNECTION
2
INTERFACE
3
・・LIGHTS FOR 0.25
・・LIGHTS FOR 0.25
SEC AT INTERVAL
SEC AT INTERVAL
OF 0.25 SEC.