Technical information

Portable Chillers UGH024/1103
6-18 TROUBLESHOOTING
TIC CONTROL
ALARM
CONDITIONS
Alarm
Compressor
Overload (pump is
running and com-
pressor is off) Not
displayed on alarm
compressor light lit
but compressor not
on.
Compressor fault.
Possible cause
Low supply voltage.
Faulty contactor.
Faulty overload module.
Leads are backwards.
The compressor failed.
SOLUTION
o Check supply voltage.
Supply voltage to contactor
should be +- 10% of name-
plate voltage.
o Check wire terminations
and connections. Tighten if
loose.
Check line and load side of
contactor. It should be less
than 5 volt drop across the
contactor. If it is not, replace
the contactor. See Replacing
the Contactor in the
Troubleshooting section.
Check amp draw of circuit. If
it is under the rated setting,
replace the overload module.
See Replacing Overload
Modules, in the
Troubleshooting section.
Swap any two of the three
main power leads to the com-
pressor.
Contact Conair Service.