Water plate will not
close after defrost.
Evaporator temperature probe is
defective and not sensing warm
evaporator temperature.
Test probe and replace if defective.
Actuator motor output shaft is tuning
but front cam is not turning.
Cam pin is broken or missing.
Actuator motor will not run. No
voltage measured at actuator motor.
Inspect operation of arms up and
arms down switches. Adjust or
replace if defective.
Actuator motor will not run. No
voltage measured at actuator motor
and controller output terminal.
Test controller and replace if
defective.
Actuator motor will not run. Voltage
measured at actuator motor.
Actuator motor or capacitor defective.
Replace defective actuator motor or
capacitor. See actuator motor test
procedure for additional information.
Actuator motor overheated. Open
thermal overload.
Let motor cool and determine why
motor is running continuously.
Defrost does not
initiate when water
level drops below
low water level
probe.
Water level probe does not sense
that the water level is low.
Be sure there is no continuity path
between the probes through water
or mineral deposits on the probe
cap. Make sure the cap is clean
and dry especially after cleaning the
ice machine.
Water level probes are OK but no
voltage measured at the controller
output terminals to the actuator
motor, water valve or defrost valve.
Test controller and replace if
defective.
Defrost cycle ends
and water plate
closes before all ice
is out of the
evaporator.
Evaporator temperature adjustment is
set too cold and terminates defrost
too early.
Adjust evaporator temperature
adjustment counter-clockwise
(warmer) to extend defrost time.
The evaporator temperature probe
has poor contact with the evaporator
and terminates defrost too early.
Be sure the evaporator temperature
probe is fully inserted into the
evaporator probe holder.
Evaporator grids are distorted,
slowing the fall of the ice from the
evaporator.
Carefully straighten grids or replace
evaporator if the damage is severe.
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