60 Part Number STH098 06/19
CONTROL BOARD TIMERS
• The ice machine is locked into the freeze cycle for 6
minutes before a harvest cycle can be initiated.
• The freeze time lock in feature is bypassed on the
initial cycle (manual start or after a full bin/safety limit
condition).
• The water fill valve is de-energized 1 minute after the
freeze cycle starts. The control board will energize the
water inlet valve one more time 3 minutes into the
freeze cycle.
• If the harvest float switch is in the down position for
10 continuous seconds during the start of a freeze
cycle, a harvest sequence is initiated.
• The maximum freeze time is 45 minutes at which time
the control board automatically initiates a harvest
sequence.
• The maximum harvest time is a total of 7 minutes.
If the bin switch does not activate within 3.5 minutes,
the harvest cycle extends another 3.5 minutes. If 7
minutes is exceeded a thaw cycle starts.
• After the initial harvest cycle from either an automatic
shut off or initial start the dump valve solenoid will
only energize and purge the water in the water trough
every third cycle.
The water trough thermistor performs the following
function in the freeze cycle:
• When the temperature of the water reaches 34° F the
water pump de-energizes for 25 seconds,
then re energizes.
• When the water pump restarts the water inlet
solenoid energizes for 7 seconds.
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