SystemAir SYS WSC 86

List of ODU error codes:
Error
Code
Error Definition and
Description
Error
Code
Error Definition and Description
XH4
Inverter module protection
fault
XL0 Inverter module fault
H5
3X P2 protection fault in 60
minutes
XL1 DC bus low voltage protection
H6
3X P4 protection fault in 100
minutes
XL2 DC bus high voltage protection
H7
IDU qty decrease fault
XL3
Reserved
H8
High-pressure sensor fault
XL4
MCE fault/synchronization/closed loop
H9
3X P9 protection in 60
minutes
XL5 Zero speed protection
Hb
Low pressure sensor fault
XL7
Phase sequence error protection
C7
3X PL protection in 100
minutes
XL8
Protection against sudden speed
change in compressor > 15Hz
F0
3X PP protection in 100
minutes
XL9
Protection to prevent the difference
between the speed setting and actual
operating speed of the compressor >
15Hz
39