Use and Care
Customer Support Section 5
22
Part Number 040002909 5/13
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 On/Off button and turn off the ice
machine, then press the On/Off button again to start
the ice machine.
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 is recurring.
A. If the ice machine stops again, the condition has
recurred. Call for service.
B. If the ice machine continues to run, the condition
has corrected itself. Allow the ice machine to
continue running.
Problem Possible Cause To Correct
Ice machine produces shallow or
incomplete cubes, or the ice fill
pattern on the evaporator is
incomplete.
Ice thickness switch is out of adjustment. Adjust the ice thickness switch.
Water trough level is too high or too low. Check the water level.
Water filtration is poor. Replace the filter.
Hot incoming water. Connect the ice machine to a cold water
supply.
Incorrect incoming water pressure. Water pressure must be 20-80 psi (137.9 -
551.5 kPa).
Ice machine is not level. Level the ice machine.
Low ice capacity. The condenser is dirty. Clean the condenser.
High air temperature around ice machine
(air-cooled models).
Air temperature must not exceed 110F
(43C).
Inadequate clearance around the ice
machine.
Provide adequate clearance.
Objects stacked around ice machine,
blocking airflow to condenser
(air-cooled models).
Remove items blocking airflow.
Hot incoming water. Connect the ice machine to a cold water
supply.
Incorrect incoming water pressure. Water
pressure is too low or water filter is
restricted.
Water pressure must be 20-80 psi (137.9 -
551.5 kPa). Refer to section 2 for
plumbing requirements. Replace water
filter.