Safety Limit Feature - Koolaire KD0250A Installation And Maintenance Manual

Customer Support
Problem
Ice machine produces shallow or
incomplete cubes, or the ice fill
pattern on the evaporator is
incomplete.
Low ice capacity.

Safety Limit Feature

In addition to the standard safety controls, such as the high
pressure cutout, your ice machine features built-in safety
limits which will stop the ice machine if conditions arise
which could cause a major component failure.
Refer to Safety Limits Section 3 for more information on
safety limits.
26
Possible Cause
Ice thickness float switch is out of adjustment.
Water trough level is too high or too low.
Water filtration is poor.
Hot incoming water.
Incorrect incoming water pressure.
Ice machine is not level.
The condenser is dirty.
High air temperature around ice machine (air-
cooled models).
Inadequate clearance around the ice machine.
Objects stacked around ice machine, blocking
airflow to condenser (air-cooled models).
Hot incoming water.
Incorrect incoming water pressure. Water
pressure is too low or water filter is restricted.
Adjust the ice thickness float switch.
Check the water level and adjust if required.
Replace the filter.
Connect the ice machine to a cold water
supply.
Water pressure must be 20-80 psi (137.9 -
551.5 kPa).
Level the ice machine.
Clean the condenser.
Air temperature must not exceed 110°F
(43°C).
Provide adequate clearance.
Remove items blocking airflow.
Connect the ice machine to a cold water
supply.
Water pressure must be 20-80 psi (137.9 -
551.5 kPa). Refer to Section 2 for plumbing
requirements. Replace water filter.
Before calling for service, re-start the ice machine using the
following procedure:
1. Move the toggle switch to OFF, then the ICE position,
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.
Section 5
To Correct
Part Number 000012545 4/14