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Malfunction code
Main
Sub code
code
Master/sub 1/sub 2
01/02/03
J7
06/07/08
18/19/20
01/02/03
J8
08/09/10
01/02/03
J9
11/12/13
06/08/10
JA
07/09/11
06/08/10
JC
07/09/11
14/15/16
LC
19/20/21
24/25/26
33/34/35
01/02/03
P1
01/08/11
U2
02/09/12
03
U3
04
05
06
07
08
01
U4
03
English
Contents
Temperature sensor malfunction
(R3T)-A1P (X30A)
Temperature sensor malfunction
(R7T)-A1P (X30A)
Temperature sensor malfunction
(R16T)-A7P (X15A)
Temperature sensor malfunction
(R4T)-A1P (X30A)
Temperature sensor malfunction
(R5T)-A1P (X30A)
Temperature sensor malfunction
(R6T)-A1P (X30A)
Temperature sensor malfunction
(R13T)-A7P (X17A)
High pressure sensor malfunction: open circuit
(S1NPH)-A1P (X32A)
High pressure sensor malfunction: short circuit
(S1NPH)-A1P (X32A)
Low pressure sensor malfunction: open circuit
(S1NPL)-A1P (X31A)
Low pressure sensor malfunction: short circuit
(S1NPL)-A1P (X31A)
Transmission trouble.
A4P (X6A)-A1P (X28A)
Transmission trouble.
A5P (X3A)-A4P (X41A)
Transmission trouble.
A5P (X4A)-A6P (X3A)
Transmission trouble.
A7P (X2A)-A1P (X20A)
Unbalanced power supply voltage.
Voltage power shortage or open power supply phase.
Reversed or open power supply phase.
System test run not yet executed (system operation
not possible).
An error occurred during the test run.
Test run aborted.
Test run aborted due to communication issues.
Faulty wiring to Q1/Q2 or indoor- outdoor.
Malfunction of connected indoor unit.
Solution
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection on printed circuit board or actuator.
Check connection.
Check connection.
Check connection.
Check connection.
Check if power supply is within the range.
• Check if power supply is within the range.
• Correct phase order.
• Check if power supply is within the range.
• Correct phase order.
Execute system test run.
Check the piping and re-execute the test run.
Re-execute the test run.
Check the communication wires and re-execute the
test run.
Connect transmission wiring of indoor units to "TO
IN/D UNIT (F1, F2)" and transmission wiring of other
outdoor units to "TO OUT/D UNIT (F1, F2)".
Check the malfunction code of indoor unit and resolve it.
42
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