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Ice-O-Matic CIM Float Switch Replacement & Adjustment Instructions

Float switches are vital in commercial ice machines to ensure they’re properly making ice. A malfunction in this part could lead to overflowing or not enough water and, thus, a service call. So, if you’re loading up the van for a job like this, it helps to prepare before you get there. The Ice-O-Matic team is here to help you do so. These Ice-O-Matic CIM float switch replacement and adjustment instructions will ensure you know what to look for and are able to get the job done right.

Removing the Float Assembly

  • Step 1. Remove the front panel – Loosen the two screws at the front of the unit and lift up to remove the front panel. 
  • Step 2. Remove the splash guard – Lift the top panel slightly to pull out the splash guard.
  • Step 3. Disconnect the water distribution tube – Loosen the C-clamp  securing the tube. Then, pull it loose from the upper assembly. Disconnect the tube where the white coupling is to fully remove the tube. 
  • Step 4. Remove the curtains – Lift up and out to remove the upper curtain. To remove the lower curtain assembly, tilt it at an angle to pop one side out and remove the entire part. 
  • Step 5. Remove the water trough – Tuck the gray tubing into the pan first. Then, pull the fan slightly forward and lift up so it tilts at an angle. While it’s at this angle, push it down into the bin. Then, turn it sideways to pull it up and out of the unit. 
  • Step 6. Remove the float assembly – Grab the float assembly tightly on both sides and pull it down. Then, unplug all three of the wires connected to it and pull it out of the unit. 

Adjusting the Float Assembly

  • Step 1. Identify the switch – Look for the switch with ICE BRIDGE on it. This is the switch you need to adjust the thickness of the ice. 
  • Step 2. Adjust ice thickness – Push the ICE BRIDGE switch up to make the ice thickness thicker and down to make it thinner.
    • Note. This adjustment can be done with the float switch still connected to the unit.

Installing a New Float Switch

The new float switch assembly kit should come with a piece of paper with a list of the number of settings needed for all the different Ice-O-Matic units.

  • Step 1. Open the float assembly – Pull the clamp on the side of the float assembly box to open it up.
    • Note. Hold the thermistor in place, or it can fall out.
  • Step 2. Remove the switch – To remove the switch, turn it clockwise and pull it out.
  • Step 3. Install the switch – Depending on the machine’s setting, move the switch to the corresponding number on the back of the box. Push the switch through and turn it counterclockwise to lock it in place. 
  • Step 4. Close the box – Close the float assembly box by snapping it together. Make sure you hear the tabs audibly snap to ensure it is securely closed. 
  • Step 5. Connect the wires – Connect the three wires from the unit to the three from the float assembly. Then, tuck the wires back up into the machine.
    • Note. The wires are designed so they cannot be mixed and matched. Thus, you can only connect the wire to itsproper corresponding wire.
  • Step 6. Install the float assembly – Line the float assembly up with the square hole in the unit. Then, firmly push it up and into place. 
  • Step 7. Install the water trough – Put the trough into the bin sideways and then turn it the right way. Bring it up over the two clips on either side to line it up. You’ll want to tuck the gray tube into the pan as you’re pulling it up. Push the pan down to secure it in place. 
  • Step 8. Install the curtains – Take the lower curtain and start with securing one side’s pin in place. Then, snap in the other side’s pin to secure the lower curtain. For the upper curtain, bring it in from the side and drop it down into place.
  • Step 9. Connect the water distribution tube – Connect the white coupling to the gray tubing at the bottom by the water trough. Then, connect it to  the upper water curtain by using the C-clamp to secure it in place. 
  • Step 10. Install the splash guard – To install the splash guard, slightly lift up the top panel of the unit and then slide the splash guard in place. 
  • Step 11. Install the front panel – Slide the front panel into place and secure it by tightening the two screws.