–137–
When a safety limit condition is exceeded (6
consecutive cycles for safety limit #1 or 500 cycles for
safety limit #2) the ice machine stops, and the harvest
light on the control board flashes on and off. Use the
following procedure to determine which safety limit
has stopped the ice machine.
1. Move the toggle switch to OFF.
2. Move the toggle switch back to ICE.
3. Watch the harvest light. It will flash one or two
times, corresponding to safety limits 1 and 2, to
indicate which safety limit stopped the ice machine.
After safety limit indication, the ice machine will restart
and run until a safety limit is exceeded again.
SAFETY LIMIT NOTES
Because there are many possible external
problems, do not limit your diagnosis to only the
items listed in these charts.
A continuous run of 100 harvests automatically
erases the safety limit code.
The control board will store and indicate only one
safety limit – the last one exceeded.
If the toggle switch is moved to the OFF position and
then back to the ICE position prior to reaching the
100-harvest point, the last safety limit exceeded will
be indicated.
If the Harvest light did not flash prior to the ice
machine restarting, then the ice machine did not
stop because it exceeded a safety limit.
SAFETY LIMIT CHECKLIST
The following checklists are designed to assist the
service technician in analysis. However, because
there are many possible external problems, do not
limit your diagnosis to only the items listed.
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