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Part Number: 000015430 Rev 02 5/20 163
Symptom #2 Machine is running and the display has an
alert indication.
1. The display indicates an E5 HPC Trip in the Alert Log.
Open the event and view when and how often HPCO
Fault has occurred.
2. If this is a one time event it may be intermittent and
caused by conditions around the unit changing. For
example: High ambient temperature, water turned off
to condenser (water cooled unit) etc.
3. Run the system to see if the control trips at the rated
pressure. If HPCO opens at a pressure significantly
lower than the control setting replace the HPCO.
4. If the control opens at the correct pressure find the
root cause - Fan motor, dirty condenser, refrigeration
system issue, etc.
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