Manitowoc RNS0244 Technician's Handbook page 152

Hard Error
Gear motor amperage exceeds 3.8 amps a second time,
within six hours of the first failure. The ice machine must
be reset by pressing the control board reset button.
HI PRESSURE
Soft Error
If the refrigeration pressure exceeds 425 psi (2930 kPa)
the ice machine will turn off, energize the Hi Press light
and initiate a 60 minute delay period. If the refrigeration
pressure is below 295 psi (2034 kPa) at the end of the
delay period the ice machine will restart.
DRAIN CLOG
Soft error
When the drain sensor (located in the drain pan behind
the drain solenoid) detects water, the ice machine will
energize the Drain Clog light and turn off until reset.
152 Part Number 000007661 11/16