Manitowoc SD0302A Technician's Handbook page 149

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PROBLEM: ICE MACHINE CYCLES INTO HARVEST
BEFORE WATER CONTACT WITH THE ICE
THICKNESS PROBE
Step 1 Bypass the freeze time lock-in feature by
moving the ICE/OFF/CLEAN switch to OFF and back
to ICE.
Step 2 Disconnect the ice thickness probe from the
control board.
Step 3 Wait until water starts to flow over the
evaporator, then monitor the ice probe light:
Ice Probe Light Off
• The ice probe light stays off, and the ice machine
remains in the Freeze sequence.
The ice thickness probe is causing the malfunction.
Verify that the ice thickness probe is adjusted correctly
and clean.
Ice Probe Light On
• The ice probe light comes on, and 10 seconds
later, the ice machine cycles from Freeze to
Harvest.
The control board is causing the malfunction.
Part Number 80-1479-3 7/10
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