Part Number STH025 11/16 113
Safety Limits
In addition to standard safety controls, the control board
has built in safety limit controls which protect the ice
machine from major component failures.
Safety limits are stored and indicated by the control
board. The number of cycles required to stop the ice
machine varies for each safety limit.
• Safety Limit 1 - If the freeze time reaches 35 minutes,
the control board automatically initiates a harvest
cycle. If 6 consecutive 35-minute freeze cycles occur,
the ice machine stops
Firmware 5.009 or earlier - If the freeze time reaches
60 minutes, the control board automatically initiates
a harvest cycle. If 6 consecutive 60 minute freeze
cycles occur, the ice machine stops
• Safety Limit 2 - If the harvest time reaches 7 minutes,
the control board will start a water thaw cycle and
automatically return the ice machine to the freeze
cycle. After 3 consecutive long harvest cycles the ice
machine stops.
Firmware 5.009 or earlier - If the harvest time reaches
3.5 minutes the control board will automatically start
a freeze cycle. If 500 consecutive 3.5 minutes harvest
cycles occur, the ice machine stops.
Troubleshooting
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