Part Number Preliminary 6/11 249
Symptom #2 Machine is running and the display
indicates “HPC Fault” and an alert triangle
1. Navigate to the event log on the Service menu.
Scroll down to HPC Fault #5. 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 of 440
psig replace the HPCO.
4. If the control opens at the correct pressure (+-10
lbs) find the root cause - Fan motor, dirty condenser,
refrigeration system issue, etc.
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