Manitowoc Marine Q 1000, Service Technician'S Handbook

Page: 68 / 179

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DIAGNOSING WATER LEVEL CONTROL
CIRCUITRY
Problem: Water Trough Overfilling During the
Freeze Cycle
Step 1.
Start a new Freeze sequence by moving the
ICE/OFF/CLEAN toggle switch to OFF and then back
to ICE.
Step 2. Wait until the Freeze cycle starts
(approximately 45 seconds – the Freeze cycle starts
when the compressor energizes), then connect a
jumper from the water level probe to any cabinet
ground. Refer to the chart on the next page.
Important
This restart must be done prior to performing
diagnostic procedures. This assures the ice machine
is not in a Freeze cycle water inlet valve safety shut-
off mode. You must complete the entire diagnostic
procedure within 6 minutes of starting.
Important
For the test to work properly, you must wait until the
Freeze cycle starts, prior to connecting the jumper
wire. If you restart the test, you must disconnect the
jumper wire, restart the ice machine (step 1), and
then reinstall the jumper wire after the compressor
starts.