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UGH004/0999 microKool Portable Chillers
TROUBLESHOOTING 6-3
A status light
that turns from
green to red
indicates an
alarm condition.
Most chiller malfunctions are indicated by an illuminated
alarm light and error codes displayed on the control panel.
A problem can trigger three types of alarms:
●●
Shut Down Alarms: The chiller detected a problem that
caused it to shut down automatically to prevent equipment
damage or personal injury.
●●
Warning Alarms: The chiller continues to operate, but
warns of a problem that could lead to a condition that will
shut down the unit.
●●
System Errors: The system error codes indicate a non-
recoverable problem with the microprocessor control.
When the chiller control detects a problem, the red Alarm
light is activated and the RUN/STOP light changes from green
to flashing red.
When an Alarm condition occurs:
Press to silence any optional audible
alarm.
◆ The RUN/STOP light changes from flashing red to
steady red.
Note any indicator lights or error messages to
help determine the cause of the problem.
Find the alarm or error code in the diagnostics
tables
in the TROUBLESHOOTING section of this manual.
Press to clear the alarm and shut down
the chiller to correct the problem.
Press to resume normal operation after
the problem is corrected.
HOW TO IDENTIFY
THE
CAUSE OF A
PROBLEM
1
2
3
Stop
WARNING:
Disconnect and lock out
the main power source
before opening the chiller
or its electrical enclosure
for servicing. Disconnect
water supply lines as
needed.
4
Run