Scotsman Modular Cuber C0530

Remove the ice thickness sensor from the water distributor bracket.

Separate the metal sensor from the plastic insulator-bracket.

Wipe the sensor with diluted ice machine scale remover.

Scrub the plastic insulator-bracket with diluted ice machine scale remover to remove all traces of mineral build up.

Wipe the wire to the bulkhead with diluted ice machine scale remover.

Wash all ice thickness sensor parts with clean water.

Initial Testing with Indicator Lights

Shut unit off by holding the Off button for 3 seconds

Is the Purge Valve indicator light ON?

Voltage Check if Purge Valve Does Not Open

Shut the unit down by holding the Off button for 3 seconds

Unplug the harness connection from the purge valve

Ensure unit is powered up and water is in the sump

Locate and release water level sensor from sump cover

Lift sensor until mid-length probe is out of the water

Did the sump empty light turn ON?

If unit is on, did the inlet water solenoid valve open?

Return water level sensor to normal position

If unit is on and calling for ice, did the sump full light turn ON?

Test using the controller's indicator lights

Unplug the curtain switch lead from the controller

Connect an ohmmeter to the leads of the switch

Test the controller's curtain switch circuit

Observe the Ready To Harvest light

Connect the metal part of the Ice Thickness sensor to the evaporator or touch its metal surface to the metal control box wall

Did the Ready for Harvest light turn ON?

Unplug the ice thickness sensor lead from the controller