Error Definition and
Error
Description
Code
Inverter module protection
XH4
fault
3X P2 protection fault in 60
H5
minutes
3X P4 protection fault in 100
H6
minutes
H7
IDU qty decrease fault
H8
High-pressure sensor fault
3X P9 protection in 60
H9
minutes
Hb
Low pressure sensor fault
3X PL protection in 100
C7
minutes
3X PP protection in 100
F0
minutes
List of ODU error codes:
Error
Code
XL0
XL1
XL2
XL3
XL4
XL5
XL7
XL8
XL9
40
Error Definition and Description
Inverter module fault
DC bus low voltage protection
DC bus high voltage protection
Reserved
MCE fault/synchronization/closed loop
Zero speed protection
Phase sequence error protection
Protection against sudden speed
change in compressor > 15Hz
Protection to prevent the difference
between the speed setting and actual
operating speed of the compressor >
15Hz
V.2