Manitowoc NEO UD0140A, Technician'S Handbook

Page: 106 / 260

106 Part Number 000014797 Rev02 05/18
Determining Which Safety Limit Stopped the Ice Machine:
When a safety limit condition causes the ice machine to
stop, the safety limit light on the control board continually
flashes on and off.
CONTROL BOARD SAFETY LIMIT LIGHT OPERATION,
BEFORE THE POWER BUTTON HAS BEEN CYCLED ON/
OFF:
Watch the safety limit lights on the control board:
• SL#1 flashes = 3 or more 45 minute cycles
• SL#1 continuously on = Six 45minute freeze cycles
• SL#2 flashes = One 3.5 minute harvest cycles
• SL#2 continuously on = 3 consecutive 3.5 minute
harvest cycles
• SL#1 & SL#2 flash = SL#3, neither float opened within 4
minutes of the freeze cycle.
CONTROL BOARD SAFETY LIMIT LIGHT OPERATION
USING THE POWER BUTTON:
1. Press the power button once.
2. Press the power button again to start ice making.
3. Watch the safety limit lights.
• One will flash corresponding to safety limits 1 or 2.
4. Safety limit 3 is indicated by both SL#1 & SL#2
flashing.
After safety limit indication, the ice machine will restart
and run until a safety limit is exceeded again.
Safety Limit Notes
• 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 power button is cycled OFF and then ON prior
to reaching the 100-harvest point, the last safety limit
exceeded will be indicated.