Manitowoc I0320 Technician's Handbook page 145

WATER TROUGH OVERFILLING DURING THE
FREEZE CYCLE
Step 1 Press the power button and turn off the ice
machine.
Step 2 If water continues to flow with the ice machine
off, disconnect power. If water continues to flow verify
water pressure is below 80 psig before replacing the
water inlet valve.
Step 3 Check water level probe mounting and verify
secure wiring connections at the probe and control
board.
Step 4 Scroll to Service/Diagnostics/Inputs and press
down arrow until Wtr Low and Wtr High are displayed.
• No is displayed - Control board is not receiving a
sensing water signal. Continue with step 5.
• Yes is displayed - Control board is receiving a
sensing water signal. Clean the water level probe
and test run.
Step 5 Start a new freeze cycle by pressing the
power button.
Step 6 Wait until the pre-chill cycle begins, then
jumper water level probe connection #2 & #3 at the
control board.
A. Water level light energizes and water flow
stops - Repair wire or replace water level
probe.
B. Water level light does not energize and water
continues to flow - Replace control board.
Part Number STH038 5/12 143