Most chiller malfunctions are indicated by an illuminated alarm light and error codes displayed on the control panel.

HOW TO IDENTIFY

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.

THE CAUSE OF A PROBLEM

A status light that turns from green to red indicates an alarm condition.

When an Alarm condition occurs:

1 Press to silence any optional audible alarm.

The RUN/STOP light changes from flashing red to steady red.

2 Note any indicator lights or error messages to

help determine the cause of the problem.

3 Find the alarm or error code in the diagnostics tables in the TROUBLESHOOTING section of this manual.

4

Press

Stop

to clear the alarm and shut down

 

the chiller

to correct the problem.

 

 

 

 

 

Press

Run

to resume normal operation after

the problem is corrected.

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.

UGH004/0999

microKool Portable Chillers

TROUBLESHOOTING 6-3

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Conair MPW, MPA manual HOW to Identify, Cause of a Problem