Technical information

Portable Chillers UGH024/1103
6-46 TROUBLESHOOTING
PLC CONTROL
ALARM
CONDITIONS
Alarm
Discharge Pressure
Sensor Failure alarm
Discharge Pressure
Sensor 2 Failure
alarm
Possible cause
Wiring bad.
There is RF interference.
The sensor has been dam-
aged.
Wiring bad.
There is RF interference.
The sensor has been dam-
aged.
SOLUTION
Check wiring; correct as need-
ed.
Check for any electromagnetic
interference (for example, from
radios). Remove any objects
causing the problem.
Check discharge pressure status.
See Checking the Pressure
Transducer, in the Maintenance
section. Repair or replace the
sensor.
Check wiring; correct as need-
ed.
Check for any electromagnetic
interference (for example, from
radios). Remove any objects
causing the problem.
Check discharge pressure status.
See Checking the Pressure
Transducer, in the Maintenance
section. Repair or replace the
sensor.