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Since the indications cover various units, the corresponding parts listed below may not be present in some models.
REMOTE CONTROL receiver
(1) OPERATION lamp
(2) TIMER lamp
(3) QUIET lamp
OPERATION button
INDOOR UNIT
(1) Self-diagnostics Lamps
INDICATION ON INDOOR UNIT
....
OFF
CODE DIAGNOSIS CONTENTS POSSIBLE MALFUNCTION
ROOM TEMP. SENSOR TROUBLE
I/D HEAT EXCHANGER
TEMP. SENSOR TROUBLE
HUMIDITY SENSOR TROUBLE
COMPRESSOR TEMP. SENSOR
TROUBLE
O/D HEAT EXCHANGER
TEMP. SENSOR TROUBLE
O/D AIR TEMP. SENSOR TROUBLE
I/D-O/D COMMUNICATION TROUBLE
(SERIAL COMMUNICATION TROUBLE)
O/D UNIT EXTERNAL ROM TROUBLE
CURRENT PEAK CUT
HIC CIRCUIT TROUBLE
POWER TR CIRCUIT TROUBLE
PAM CIRCUIT TROUBLE
ACTIVE CIRCUIT TROUBLE
O/D SYSTEM COMM FAILURE,
OLR OPERATION, O/D POWER
OPEN PHASE, O/D FREEZING
COMPRESSOR DISCHARGE TEMP.
OVERHEATING PREVENTION
I/D FAN OPERATION TROUBLE
GAS-LOSS PREVENTION
DC COMPRESSOR DRIVE
CIRCUIT TROUBLE
O/D DC FAN OPERATION TROUBLE
FREEZING-PREVENTION OPERATION
4-WAY VALVE SWITCHING TROUBLE
ZERO-CROSS TROUBLE
O/D CURRENT SENSOR ERROR
....
BLINKING
....
ON
QUIET TIMER
OPERATION
(3) (2) (1)
(1) OPEN OR SHORT CIRCUIT IN SENSOR
(2) POOR CONTACT AT CONNECTOR OR OPEN CIRCUIT AT
TERMINAL PRESS-FIT LOCATION (FOR HUMIDITY SENSOR,
THIS REPRESENTS SHORT-CIRCUIT DETECTION ONLY.)
(3) I/D PCB FAILURE (I/D = INDOOR)
(1) OPEN OR SHORT CIRCUIT IN SENSOR
(2) POOR CONTACT AT CONNECTOR OR OPEN CIRCUIT AT
TERMINAL PRESS-FIT LOCATION
(3) O/D PCB FAILURE (O/D = OUTDOOR)
O/D PCB FAILURE
(1) MIS-WIRING (2) AC POWER FAILURE (3) BLOWN FUSE
(4) POWER RELAY FAILURE (5) I/D OR O/D PCB FAILURE
(6) O/D FAN MOTOR FAILURE (7) REACTOR FAILURE
(8) HIGH-PRESSURE SW FAILURE (9) OLR FAILURE (10) MAGNETIC COIL FAILURE
(1) HIC OR POWER TR FAILURE (2) O/D FAN NOT OPERATING
(3) INSTANTANEOUS POWER STOPPAGE (4) SERVICE VALVE NOT OPENED.
(5) O/D FAN BLOCKED (6) CONTINUOUS OVERLOAD OPERATION
(7) COMPRESSOR FAILURE (8) O/D PCB FAILURE
(1) EXTERNAL ROM DATA FAILURE (2) O/D PCB FAILURE
(1) INSTANTANEOUS POWER STOPPAGE (2) HIC OR POWER TR FAILURE
(3) O/D PCB FAILURE
(1) O/D PCB FAILURE
(2) O/D POWER VOLTAGE TROUBLE
(1) ELECTRIC EXPANSION VALVE FAILURE (2) CHOKED CAPILLARY TUBE
(3) INSUFFICIENT GAS (4) CONTINUOUS OVERLOAD OPERATION
(5) O/D FAN NOT OPERATING (6) O/D PCB FAILURE
(1) FAN MOTOR FAILURE (2) CONNECTOR CONTACT FAILURE
(3) I/D PCB FAILURE
(1) 4-WAY VALVE FAILURE (HEAT PUMP MODEL ONLY)
(2) O/D PCB FAILURE
(1) SERVICE VALVE NOT OPENED (2) INSUFFICIENT GAS
(1) OPEN PHASE (2) O/D PCB FAILURE
(1) FAN MOTOR FAILURE (2) CONNECTOR CONTACT FAILURE
(3) O/D PCB FAILURE
(1) MIS-WIRING (2) BLOWN FUSE (3) POWER RELAY FAILURE
(4) O/D PCB FAILURE (5) COMPRESSOR FAILURE
(1) I/D FAN SYSTEM FAILURE (2) INSUFFICIENT GAS
(3) OPERATION AT LOW TEMPERATURE
8FA2-5251-11100-2
S01
S02
S03
S04
S05
S06
S07
E01
E02
E03
E04
E05
E06
E07
E08
E09
E10
E11
E12
E13
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