Technical information

Portable Chillers UGH024/1103
6-44 TROUBLESHOOTING
PLC CONTROL
ALARM
CONDITIONS
Alarm
Compressor 2
Rotation Fault alarm
Possible cause
Compressor 2 is wired
incorrectly.
High pressure transducer
is faulty.
Solution
Shut off chiller supply voltage.
Switch any two leads:
l at main terminal block if
new unit installation.
l at compressor if it was
replaced.
Turn chiller on.
Check discharge pressure on
the Status screen.
See Checking the Pressure
Transducer, in the
Troubleshooting section.