Part Number: 040005890 Rev 04 02/19 15
Section 3 Operation
SAFETY LIMITS
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 limits can be reset by pressing the On/Off button and
starting a new ice making cycle.
A safety limit is indicated by an energized Service Light on
the touch pad. Refer to Section 5 if you receive a safety limit
indication.
• Safety Limit 1 - If the freeze time reaches 45 minutes,
the control board automatically initiates a harvest cycle.
After 6 consecutive 45-minute freeze cycles occur, the
ice machine stops.
• Safety Limit 2 - If the harvest time reaches 3.5 minutes,
the control board automatically energizes the water
pump and extends the harvest cycle another 3.5
minutes (7 minutes total). If the ice damper does not
open and close within the 7 minute harvest cycle, the
ice machine enters a water thaw cycle for 170 seconds.
If the damper does not open and close within the
170second thaw cycle, a second thaw cycle starts. The
control board automatically initiates a freeze sequence
when the thaw cycle(s) is complete. If 3 consecutive
7minute harvest and thaw cycles occur, the ice machine
stops.
• Safety Limit 3 - If the freeze time reaches 4 minutes
and water is not sensed, the ice machine stops and
initiates a 30 minute delay period. The ice machine will
automatically restart at the end of the 30 minute delay
period. If 100 consecutive failures occur, the ice machine
stops.
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