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162 Part Number: 000015430 Rev 02 5/20
CHECK PROCEDURE
Symptom #1 Machine is off and the display indicates an
E5 HPC Trip in the Alert Log.
1. Install a manifold gauge set.
2. Start a new freeze cycle by cycling the On/Off button.
3. Run the system to see if the control trips at the rated
pressure. If HPCO opens at a pressure significantly
lower or higher 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. The ice machine will go to an initial
start sequence if the HPCO is closed. If the HPCO is
open, another 10 minute delay period starts. When
the compressor relay closes the control board checks
the HPCO.
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