Part Number STH038 5/12 153
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, blocked vents, etc.
3. Run the system to see if the control trips. If HPCO
opens, find the root cause - Fan motor, dirty
condenser, refrigeration system issue, etc.