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[Alert] Chiller Not Cooling, CT 1.5 (Compact Chiller)

Updated

Overview

This article provides steps to work through troubleshooting a Chiller Not Cooling alert for the compact chiller in the Countertop 1.5 (CT 1.5).

Alert Details

The alert triggers if the ice bank temperature remains above 8 °C for 24 consecutive hours.

In this article (click to jump):

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 Not Cooling 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. For a full list of machine alerts, see here.

  1. Enter the Service Panel to resolve the "Chiller Not Cooling" alert.
    1. Touch the service icon in the upper left corner.
    2. Touch “Start Service”.
    3. Enter the PIN to access the service panel.
    4. On the left side of the screen, touch “Machine Alerts”.
ct 1.5 enter sp service panel.png
CT enter TT CC compact chiller CT 1.5
  1. Are there other alerts present?
    1. If YES:
      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: Continue to next step.
  2. Mark the “Chiller Not Cooling” alert as resolved.
  3. Restart the machine.
    1. Locate the front power switch and toggle to OFF.
    2. Wait 30 seconds.
    3. Toggle the switch back to ON.

Task 3: Check the Chiller Sensor Data.

  1. From the Alerts & Troubleshooting screen, select Troubleshooting Tools.
  2. In Data > Chiller, inspect the Chiller sensor data to verify they are reporting correctly.
    1. If sensor values are reported as “Unknown”, see Compact Chiller Connection Lost troubleshooting here.
    2. Check if 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.

    3. Check if Ice is detected.
      1. If Ice Detected = NO, continue to the next steps.

      2. If Ice Detected = YES, but water is warm, jump to Task 3b.

    4. Check the chiller temperature.
      1. If the chiller temperature appears to be reading an expected value (~8-30°C), continue to next steps.

      2. If the chiller temperature reads < 0.5°C, is fluctuating rapidly, above 40°C, or is “NaN”, the chiller temperature sensor or its connection may be bad, jump to Task 3c.

  3. If the above Chiller Sensor data points are reporting correctly, jump to Task 4.

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. The machine will automatically start filling the chiller until the correct level is reached.
  2. Confirm in Data > Chiller, that Chiller Full = YES.
  3. If the ice bank fill fails:
    1. See Ice Bank Low Troubleshooting.
  4. Exit the Troubleshooting Tools Menu, and resolve the Ice Bank Low Alert if present.

Task 3b: If Ice is detected, but water is dispensing warm.

  1. If Ice Detected = YES, but the water is dispensing warm, troubleshoot the ice sensor.
  2. Power OFF the compact chiller.

  3. Remove the top and left side PCB panels. 

     

  4. Inspect the Chiller Sensor cables for any damage between the BUC board and Ice Pins.
    1. Inspect the connection at the BUC board to ensure it is fully seated.
    2. Confirm the quick-connects are fully seated onto the Ice Sense Pins.
    3. Check the harness for any visible damage.
      1. If any damage is found on the chiller sensor cable, please contact Bevi Support at 866-704-2384.
    4. Carefully disconnect, then reconnect the Chiller Sense connector at the BUC board.

      1. Ensure the connector is fully seated and clicks into the board side connector.

    5. After reseating, power on the Chiller and navigate back to the Troubleshooting Tools menu.
      1. If Ice Detected = NO, continue to Task 4.
      2. If Ice Detected = YES, continue to next steps.
  5. Test the Ice Pin cables to confirm they are working properly.
    1. Power OFF the chiller.
    2. Locate the Ice Sensor wires.
      1. The ice sensor signal is a red wire ending in a straight quick-connect.

      2. The ice sensor ground is a gray wire ending in a right-angle quick-connect.

    3. Disconnect the quick-connects for the Red and Grey wires from the Ice Pins.
      1. You may need to release the sensor pins from the plastic clips and lift up slightly on the pin to disconnect the quick-connects.
    4. Power ON the chiller.
    5. Using a metal tool, jump the quick-connects on the red and grey wires together.
      1. Small needle nose pliers, a piece of wire, or a paper clip can be used to jump the connectors together.
    6. With an electrical connection between the red and grey wires for >1 minute, check if Ice Detected is YES or NO.
      1. If Ice Detected remains “Yes”, either the chiller sense cable or BUC Board is bad.
        1. Contact Bevi Support at 866-704-2384.
      2. If Ice Detected changes to NO then the ice sensor is working properly, continue to Task 4.

Task 3c: Check the Chiller Temperature data.

  1. Power OFF the Chiller.
  2. Inspect the Chiller Sensor cables for any damage between the BUC board and Temperature Sensor.
    1. Inspect the connection at the BUC board to ensure it is fully seated.
    2. Carefully disconnect, then reconnect the Chiller Sense connector at the BUC board.
      1. Ensure the connector is fully seated and clicks into the board side connector.chiller sensor sense at buc compact chiller cc ct 1.5.png
  3. Inspect the Temperature Sensor connection to the Chiller Sensor harness.
    1. Inspect both the cable connector, and the temperature sensor for any visible damage to the wiring and or any corrosion.

      1. If any damage is found on the chiller sensor cable or the sensor itself, please contact Bevi Support at 866-704-2384.

  4. After performing the above steps, power ON the Chiller and navigate back to the Troubleshooting Tools menu.
    1. If the temperature data is reporting an expected value, continue to Task 4.
    2. If the chiller temperature still reads < 0.5°C, is fluctuating rapidly, above 40°C, or is “NaN”, the temperature sensor or BUC board may be bad.
      1. Contact Bevi Support at 866-704-2384.

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. In the PCB panel, inspect the BUC board for Overcurrent LEDs.
    2. If the LEDs are red, an overcurrent has occurred.

    3. 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.
  Current Readings (amps)
Chiller Model No Power Low Normal High
NA (120 V) < 0.5 ~1 - 1.5 ~1.8 - 2.5 ~2.7

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: Test 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 5 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.
bevi droplet favicon.png 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)
bevi droplet favicon.png 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)