Service Manual

OUTDOOR UNIT
ERROR DETECTION
POWER
LED981
ERROR
LED982
MODE
EXIT
SELECT
ENTER
SW931
SW932 SW933
0.1sec 0.1sec
ON
ON
OFF
OFF
POWER MODE LED : on
ERROR LED : blink
ERROR transition
"Err." and quantity are alternately shown.
When there is more than one error, display is changed by "SELECT" short press.
"ENTER" short press"ENTER" short press
Short press : less than 3 seconds
Long press : more than 3 seconds
Annunciation
Type of errors
"SELECT" short press
If some error newly occurs or is resolved
during transition, it is reflected after going
back to "Annunciation".
LED display
Operation button
ex : discharge thermistor abnormal ex : indoor unit abnormal
472010.07.30
LED981
LED962
LED961
POWER
MODE
ERROR
(GREEN)
LED982
(RED)
CHECK
SW934
Error Contents
Error
Code
Number of wires and pipes error
Check run unfinished
Serial communication error
Serial communication error
Liquid pipe thermistor error
Heat sink thermistor error
Suction gas thermistor error
Outdoor thermistor error
Compressor thermistor error
Discharge thermistor error
A.F. voltage error
Inverter error
Indoor unit error
Number of branch boxes error
Number of indoor units error
Indoor unit capacity error
Outdoor unit model information error
Heat ex. liquid outlet thermistor error
Sub cool heat ex. gas outlet thermistor error
Sub cool heat ex. gas inlet thermistor error
E. 1 1. 4
Discharge temperature error
Outdoor unit fan motor error
Compressor control error
Over current error
High pressure switch error
Suction pressure sensor error
4-way valve error
Discharge pressure sensor error
Current sensor error
Branch boxes error
Low pressure error
Compressor temperature error
E. 8 2. 1
E. 7 7. 1
E. 7 5. 1
E. 7 4. 1
E. 7 3. 3
E. 7 2. 1
E. 7 1. 1
E. 6 4. 1
E. 6 3. 1
E. 6 2. 1
E. 5 U. 1
E. 2 4. 3
E. 2 4. 2
E. 2 2. 1
E. 2 1. 2
E. 1 5. 6
E. J 2. U
E. A 5. 1
E. A 3. 1
E. A 1. 1
E. 9 9. 1
E. 9 7. 3
E. 9 5. 1
E. 9 4. 1
E. 8 6. 4
E. 8 2. 2
E. 8 3. 1
E. 8 4. 1
E. 8 6. 1
E. 8 6. 3
E. 1 1. 3