Technical information

Portable Chillers UGH024/11036-26 TROUBLESHOOTING
PLC CONTROL
PROBLEMS
Symptom
The control is not lit
and the chiller is not
working.
Possible cause
Power is not reaching the
chiller.
The correct power is not
reaching the unit
There is a problem with
the PLC.
There is a problem with
the control panel.
Solution
p Check the power cord and
plug. Make sure the cord and
plug are properly connected.
p Make sure the main dis-
connect switch is on.
p Check fuses and breakers.
Replace or reset as required.
See Replacing Fuses, in the
Troubleshooting section.
Check the voltage specifica-
tion on the chiller nameplate.
p Check fuses and replace
as needed. See Replacing
Fuses, in the Troubleshooting
section.
p Check the cable between
the control panel and the PLC;
reconnect or replace as needed.
p Check the PLC indicator
lights: Power and Program
Run lights should be lit.
Contact Conair Service if sta-
tus is not normal.
The control panel may have
failed. Contact Conair Service.