Troubleshooting by Remote Controller
38
2.5.2 Outdoor Unit
Error
code
Troubleshooting
Description of error
Description of diagnosis
E3 - 01
E3 - 02
High pressure switch
activated (Master)
Refer to the “E3” flow chart of
each manual and make a
diagnosis of the relevant unit
based on the Error code shown
to the left.
E3 - 03
E3 - 04
High pressure switch
activated (Slave 1)
E3 - 05
E3 - 06
High pressure switch
activated (Slave 2)
E3 - 07 High pressure switch
activated (Batch)
E4 - 01 Low pressure error (Master)
Refer to the “E4” flow chart of
each manual and make a
diagnosis of the relevant unit
based on the Error code shown
to the left.
E4 - 02 Low pressure error (Slave 1)
E4 - 03 Low pressure error (Slave 2)
E5 - 01 INV. compressor lock
(Master)
Refer to the “E5” flow chart of
each manual and make a
diagnosis of the relevant unit
based on the Error code shown
to the left.
E5 - 02 INV. compressor lock (Slave 1)
E5 - 03 INV. compressor lock (Slave 2)
E6 - 01 STD compressor 1 OC
activated (Master)
Refer to the “E6” flow chart of
each manual and make a
diagnosis of the relevant
compressor of the relevant unit
based on the Error code shown
to the left.
E6 - 02 STD compressor 2 OC
activated (Master)
E6 - 03 STD compressor 1 OC
activated (Slave 1)
E6 - 04 STD compressor 2 OC
activated (Slave 1)
E6 - 05 STD compressor 1 OC
activated (Slave 2)
E6 - 06 STD compressor 2 OC
activated (Slave 2)