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Removal and Repair
Evaporator Thermistor
Note: If unit is built in it must be pulled out to
change the evaporator thermistor.
1. Shut machine off. If unit was making ice,
manually harvest the ice.
2. Disconnect electrical power.
3. Remove top panel.
4. Remove cover from controller box.
5. Disconnect thermistor wire from controller.
6. Locate thermistor sensor, it is attached to the
suction line, just above the accumulator and is
covered with insulation tape. Remove the
insulation.
7. Disconnect sensor bulb from suction line (it's
held on with a metal clip).
8. Remove thermistor from ice machine.
9. Reverse to reassemble. It is very important that
the bulb be re-insulated.
Transformer
Note: If unit is built in it must be pulled out to
change the transformer.
1. Disconnect electrical power.
2. Remove top panel.
3. Remove controller cover.
4. Unplug leads from transformer.
5. Remove screws holding transformer to controller
box and pull transformer up and out of the ice
machine.
6. Reverse to reassemble.
Controller
Note: If unit is built in it must be pulled out to
change the controller.
1. Disconnect electrical power.
2. Remove top panel
3. Remove controller box cover.
4. Unplug all connections.
5. Remove screws holding controller to housing,
and lift controller from unit.
Note: To avoid damaging the controller, touch the
metal chassis of the unit prior to touching the
replacement controller.
6. Reverse to reassemble.
Control Panel
1. Disconnect electrical power.
2. Remove top panel
3. Remove controller box cover.
4. Unplug ribbon cable connection.
5. Push control panel away from the front of the
machine. Begin at the ribbon cable attachment
point.
Note: Control panel is held on by adhesive and the
adhesive is thinnest at the cable point.
6. Separate control panel from controller box and
remove from the ice machine.
7. Reverse to reassemble.
March 2010
Page 27
CU50
Service Manual
Electrical Shock
Hazard.
Disconnect electrical
power before
beginning removal