[Alert] Chiller Electrical Issue, CT 1.5 (Compact Chiller)

Overview

This guide provides diagnostic steps to identify the root cause of a Chiller Electrical Issue alert. This alert indicates that the Bevi has detected that the chiller in this machine has been frequently overcurrenting, preventing it from delivering cold drinks.

Alert Details

The alert triggers if the Compact Chiller's compressor has had 3 or more overcurrent events within a 24 hours. This is a Severity 1 alert and the machine will be out of order until resolved. If the alert is resolved without addressing the root cause, the alert may fire again after another 24 hour period.

In this article (click to jump):

• Overview
  • Alert Details
• Troubleshooting Steps
  • Task 1: Check ventilation and installation.
  • Task 2: Manually clear the Chiller Electrical Issue alert and check for other alerts.
  • Task 3: Check ice bank status.
    • Task 3A: If Ice Bank is LOW
  • Task 4: Test the Compressor.
  • Task 5: Inspect the Compressor Power cable.
  • Task 6: Exit Troubleshooting tools and confirm

Required Tools & Parts

• #2 Phillips Screwdriver

Troubleshooting Steps

Task 1: Check ventilation and installation.

NOTE: Ventilation checks should be the first step for all temperature and current-related alerts for Countertop models with a compact chiller.

1. Double-check the ventilation grate and proper installation of the compact chiller.
   1. Confirm the correct ventilation holes have been drilled in the toe kick of the cabinet.
   2. Confirm that the bottom of the chiller is sitting flush on the cabinet floor, with the ventilation grate feet located in the holes.
   3. See Poor Ventilation troubleshooting for additional details.
2. Any issues with the cabinet ventilation must be addressed prior to any further troubleshooting.
3. If the ventilation requirements are met, continue to Task 2.

Task 2: Manually clear the Chiller Electrical Issue alert and check for other alerts.

NOTE: This step is required to unblock the compressor for troubleshooting, as (red/Severity 1) alerts will block the compressor from running.

1. Enter the Service Panel to resolve the "Chiller Electrical Issue" alert.
   1. Navigate to the Troubleshooting Tools screen.
      1. Touch the service icon in the upper left corner.
      2. Touch “Start Service”.
      3. Enter the PIN to access the service panel.
   2. On the left side of the screen, touch “Machine Alerts”.

2. Mark the “Chiller Electrical Issue” alert as resolved.
3. Are there other alerts present?
   1. If yes, and there are other alerts present:
      1. Troubleshoot and resolve other alerts (red/Sev 1) first, as the compressor is blocked due to them, and may have thrown this alert as a result.
      2. Restart this troubleshooting once no other alerts (red/Sev 1) are active.
   2. If no other alerts (red/Sev 1) are present , continue to Task 3.
4. Once all alerts are cleared, power cycle the Bevi using the power switch on the front of the compact chiller.

Task 3: Check ice bank status.

1. From the Alerts & Troubleshooting screen, select Troubleshooting Tools.
2. In Data > Chiller, inspect the Chiller sensor data to verify it is reporting correctly.
   1. Confirm the Chiller Ice Bank is full.
      1. If Chiller Full = YES, continue to the next steps.
      2. If Chiller Full = NO, jump to Task 3A.

Task 3A: If Ice Bank is LOW.

1. If Chiller Full = NO, fill the ice bank.
   1. From the Troubleshooting Tools Menu, go to Controls > Chiller.
   2. Press "Start" to begin filling the ice bank.
2. If the ice bank fill passes, confirm in Data > Chiller, that Chiller Full = YES.
3. If the ice bank fill fails, see Ice Bank Low Troubleshooting.

Task 4: Test the Compressor.

1. Confirm there are no active Sev 1 Alerts.
   1. If any alerts are active, troubleshoot to resolve.
2. From the Troubleshooting Tools screen, turn on the compressor.
   1. In Chiller Controls, switch the compressor to ON.
3. Check for Overcurrent LEDs.
   1. Carefully rotate the chiller in place to access the left side.
   2. Using a #2 phillips screwdriver, loosen the single screw and remove the PCB panel.
   3. In the PCB panel, inspect the BUC board for Overcurrent LEDs.
   4. If the LEDs are red, an overcurrent has occurred.
   5. Jump to Task 5 to troubleshoot.
4. In Chiller Data, check the compressor current while the compressor is on.
   1. If the compressor current is reading within a normal range, continue to Task 6.
   2. If compressor current is either in the No Power or High ranges, jump to Task 5 to troubleshoot the compressor power cable.
   3. If current is in the LOW range, the chiller may have a refrigerant leak and requires replacement.

Task 5: Inspect the Compressor Power cable.

1. Power OFF the compact chiller.
2. In the PCB panel, locate the Compressor power cable on the BUC Board.
3. Inspect the connection to see if it appears to be damaged, or not fully seated.

4. Gently disconnect, and reconnect the 120 VAC Compressor power cable.
   1. There is a lock latch on the bottom side of the connector that needs to be depressed to disconnect the cable.
   2. Inspect the wiring connections to the connector itself, checking for loose pins that are not properly seated into the cable-side connector.
   3. When reconnecting, ensure the connector is fully seated and clicks into place.

5. Once reseated, power ON the chiller.
6. Navigate back to the Troubleshooting Tools menu.
7. In Controls > Chiller, turn on the compressor and verify compressor current in Data > Chiller.
   1. If the compressor is still not turning on after confirming all the above checks, the problem is isolated to the compressor, the cables, or the BUC Board.
   2. NOTE: The compressor itself is not replaceable. If the BUC Board and cables have been replaced, the chiller would need to be replaced.

Task 6: Exit Troubleshooting tools and confirm

1. If the compressor current is within range in Troubleshooting Tools, exit TT and the service panel to allow the chiller to run.
   1. The compressor will turn off upon exiting TT and has a five-minute minimum off time before it can restart.
2. Wait at least 10-15 minutes to allow the compressor to work, and for the ice bank temperature to drop.
   1. Bevi Support can help check the sensor data to confirm the temperature is beginning to drop.
   2. If not in touch with Support to read sensor data, wait at least 10-15 minutes before entering Service Panel Troubleshooting Tools to confirm the ice bank temperature has started dropping before completing service.
3. Check the BUC Board again to verify that the red Overcurrent LEDs have not returned.
4. Reinstall the PCB panel and move the Compact Chiller back in place, sitting flush on the cabinet base over the ventilation holes.

If you have any questions or need further assistance, please contact Bevi Technical Services at support@bevi.co, or call our support line at 866-704-2384 (BEVI)