Owner's Manual

46 Part Number: 000013325 Rev 02 6/17
Troubleshooting Section 5
Problem Possible Cause To Correct
Ice machine produces shallow or
incomplete cubes, or the ice fill pattern
on the evaporator is incomplete.
Ice thickness probe is out of adjustment. Adjust the ice thickness probe. (See page 26)
Water trough level is too low. Check the water level probe position.
Water inlet valve filter screen is dirty. Remove the water inlet valve and clean the
filter screen.
Water filtration is poor. Replace the filter.
Hot incoming water. Connect the ice machine to a cold water supply.
(See page 16)
Water inlet valve is not working. Replace the water inlet valve.
Incorrect incoming water pressure. Water pressure must be 140 kPa - 550 kPa.
Ice machine is not level. Level the ice machine.
Low ice capacity. Water inlet valve filter screen is dirty. Remove the water inlet valve and clean the
filter screen.
Incoming water supply is shut off. Open the water service valve.
Water inlet valve stuck open or leaking. Press the power button and turn off the ice
machine, if water continues to enter water
trough, replace the water inlet valve.
The condenser is dirty. Clean the condenser.
High air temperature entering condenser. Refer to air temperature chart for your model
on page 9.
The harvest assist air compressor is not
functioning.
Call for service.
Safety Limit Feature
In addition to the standard safety controls, such as the high
pressure cutout, your Manitowoc ice machine features built-
in safety limits which will stop the ice machine if conditions
arise which could cause a major component failure.
Before calling for service, re-start the ice machine using the
following procedure:
1. Press the power button. The display reads “Off”. Press
the power button again, and the display reads “Making
Ice”.
A. If the safety limit feature has stopped the ice
machine, it will restart after a short delay. Proceed
to step 2.
B. If the ice machine does not restart, see “Ice machine
does not operate” on the previous page.
2. Allow the ice machine to run to determine if the
condition repeats.
A. If the ice machine stops again, the condition has
repeated. Call for service.
B. If the ice machine continues to run, the condition
has corrected itself. Allow the ice machine to
continue running.