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6
Troubleshooting
A Few Words of Caution
Improper corrective actions can lead to hazardous conditions and should
never be attempted to sustain production.
WARNING: Only a qualified electrical technician should examine and
correct problems that require opening the chiller’s electrical enclosure
or using electrical wires to diagnose the cause.
WARNING: High voltage. Always stop the chiller, disconnect and lock out
the main power source before troubleshooting or performing repairs.
CAUTION: Hot surfaces. Always protect yourself from hot surfaces inside
and outside of the chiller.
How to Identify the Cause of a
Problem
The High Temperature Alarm is indicated by an illuminated alarm light on
the EarthSmart ECM control panel and an alarm code, (A2.hi) is displayed in
the control display.
When an alarm code is displayed in the control:
1 Find the error message in the diagnostics table of this
Troubleshooting section and reference the control labeling in the upper
right-hand side of the control face.
2 Note that, after correcting the problem, pressing the “Infinity”
button will clear the alarm. The alarm will only clear if the
condition causing the alarm has been corrected.
Troubleshooting l 6-3