[Alert] Ice Bank Low, CT 1.5 (Compact Chiller)

Overview:

This guide covers the criteria for when the Ice Bank Low alert will fire, as well as the steps to troubleshoot and resolve the issue or diagnose a potential component failure.

In this article (click to jump)

• Alert Details
• Troubleshooting Steps
  • Task 1: Fill the Ice Bank.
  • Task 2: Check the water source.
  • Task 3: Check for alerts.
  • Task 4: Inspect the Ice Bank level.
  • Task 5: Check the Ice Bank Fill valve electrical connections.
  • Task 6: Check the Level Sense Pin connections.

Alert Details

Ice Bank Low - This alert is triggered when the Bevi has detected a low water level in the ice bank. The system is monitoring the Ice Bank and the alert will auto-resolve when the water level returns to normal.

Required Tools & Parts

• #2 Phillips Screwdriver

Troubleshooting Steps

Task 1: Fill the Ice Bank.

1. Navigate to Troubleshooting Tools.
2. In Chiller Controls menu, press "START" to fill ice bank.
3. If the Ice Bank Fill passes:
   1. Confirm in chiller data that Chiller Full reads YES.
   2. Exit Troubleshooting Tools back to Alerts, and confirm Ice Bank Low alert is resolved.
4. If the Ice Bank Fill fails:
   1. Continue to next steps.

Task 2: Check the water source.

1. Confirm the water supply valve is open.
   1. If the water supply is on, continue to next steps.
   2. If the water supply is off, open the shut off valve.
   3. Once supply is on, restart the Ice Bank Fill in Troubleshooting Tools.
2. If the Ice Bank Fill passes:
   1. Confirm in chiller data that Chiller Full reads YES.
   2. Exit Troubleshooting Tools back to Alerts, and confirm the Ice Bank Low alert is resolved.
3. If the Ice Bank Fill fails:
   1. Continue to next steps.

Task 3: Check for alerts.

1. Confirm there are no other alerts present that may be interfering with the Ice Bank Fill.
   1. If alerts are present, troubleshoot and resolve.
      1. Repeat Ice Bank Fill step.
      2. If the Ice Bank Fill passes:
      3. Confirm in chiller data that Chiller Full reads YES.
      4. Exit Troubleshooting Tools back to Alerts, and confirm the Ice Bank Low alert is resolved.
   2. If no other alerts are present, continue to Task 4.

Task 4: Inspect the Ice Bank level.

1. If needed to remove chiller from cabinet, depressurize water system.
   1. Turn off water source.
   2. Close the buffer tank.
   3. Dispense still water until no water is coming out.
   4. Disconnect 3/8" water in line from back of chiller.
2. Power off the chiller and unplug power cord.
3. Slide chiller out of cabinet to access top panel.
4. Remove top panel.
   1. Loosen 2 captive screws and lift up on panel to remove.
5. Visually inspect the Ice Bank level.
   1. If the Ice Bank is not full, the Ice Bank Fill valve may not be opening.
      1. Continue to Task 5.
   2. If the Ice Bank is full, the Level Sense Pin may not be reporting correctly.
      1. Continue to Task 6.

Task 5: Check the Ice Bank Fill valve electrical connections.

1. Locate the Ice Bank Fill Valve.
2. Check that the two electrical connections are fully seated and properly connected to the valve.
3. Remove the PCB panel on the left side of the chiller.
4. Check the VALVES connector on the BUC Board.
   1. Disconnect the cable from the BUC.
   2. Inspect for any damage to the wiring or connector.
   3. Reseat to the BUC Board, ensuring it is fully seated and clicks into place.
5. Repeat Ice Bank Fill step.
6. If the Ice Bank Fill passes:
   1. Confirm in chiller data that Chiller Full reads YES.
   2. Exit Troubleshooting Tools back to Alerts, and confirm the Ice Bank Low alert is resolved.
7. If the Ice Bank Fill fails:
   1. Recheck the ice bank level.
   2. If the Ice Bank is still not full, then the Ice Bank Valve may be faulty.
      1. Replace Ice Bank Fill Valve.
      2. 720-0333 FRU - ICE BANK FILL VALVE

Task 6: Check the Level Sense Pin connections.

1. Locate the Level Sense Pin.
2. Check the connection to the Chiller Sense Harness.
   1. Disconnect the cable, inspect for any damage to wiring or connector.
   2. Reseat the cable, ensuring it is fully seated.
3. Check the Chiller Sense Harness at BUC Board.
   1. Remove the PCB panel on the left side of the chiller.
   2. Check the Chiller Sensor connector on the BUC Board.
      1. Disconnect the cable from the BUC.
      2. Inspect for any damage to the wiring or connector.
      3. Reseat to the BUC Board, ensuring it is fully seated and clicks into place.
4. Repeat Ice Bank Fill step.
   1. If the Ice Bank Fill passes:
      1. Confirm in chiller data that Chiller Full reads YES.
      2. Exit Troubleshooting Tools back to Alerts, and confirm the Ice Bank Low alert is resolved.
   2. If the Ice Bank Fill fails:
      1. Recheck the ice bank level.
      2. If the Ice Bank is full, then the Chiller Sensor Harness or BUC Board may be faulty.
         • FRU P/N 111618-01 CABLE - CHILLER SENSORS
         • FRU P/N 720-0329 FRU - BUCB - KIT