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How to replace the Automated Fluidics of the Autofluidics module
Abstract
This work instruction guides you through the replacement of a faulty Automated Fluidics (AFL) unit in a C-Trap system. It covers preparation, hardware replacement, DHCP configuration, system testing, and final steps, with troubleshooting advice for common issues like no connection in Bluelake or faulty valve actuators. The document also includes instructions for returning defective units and contacting customer support. Keywords: AFL replacement, Automated Fluidics, C-Trap, Bluelake error, DHCP setup, MAC address, valve actuator issue, ethernet connection, troubleshooting, support ticket
Preparation
Tools
- 2.5 mm Hex key
Parts
- Automated Fluidics unit sent as replacement
- Ethernet cable from Automated Fluidics
Preliminar steps
- Unpack the new Automated Fluidics unit and note down the MAC address, a Hexadecimal code that can be found as a sticker on one of the faces of the Automated Fluidics unit.
- Ensure that you are logged in to the C-Trap with and admin Windows account on the Controller PC (the PC where you can start Bluelake). It is usually C-Trap owner i.e.
- Open Bluelake or the Uflux application.
- Vent the pressure.
- Change all the valves position to 'Open'.
- Close Bluelake or the Uflux Application.
Replace the AFL
- Disconnect the Ethernet cable from the side of the faulty AFL.

- Unscrew all of the valves from the assembly. Place the screws to one side as they will be reused.

- Remove the Valves from the assembly.
- The actuator for faulty channels may not have moved to the 'Open' position. These valves will require some wriggling to be removed from the assembly.
- If you cannot remove the valve from the assembly without using excessive force, please leave it in place. Spare valves can be found in the plastic consumables boxes that are provided with the system installation.
- Remove the faulty Automated Fluidics module and replace it with the new module, ensuring the Ethernet port is facing the back of the C-Trap.
- Reconnect the Ethernet cable to the Automated Fluidics unit.
- Check that you can see the lights on the Ethernet connector.
Configure DHCP device
- On the controller PC open the file DHCPserver by going to the file location C:\srv\dhcp\OpenDHCPServer.ini by right-clicking and selecting ‘Edit’ using the Notepad application.
- Scroll to the 'Devices' section at the bottom of the file and replace the MAC address for the autofluidics with the MAC address recorded previously.
- If you did not find the MAC address on a sticker attached to the unit, go to step 4 of this section.
- Save the changes - File > Save. This window can now be closed.
- Type ‘services’ in the Windows start menu and select 'Services' desktop app.
- Scroll down to find ‘Open DHCP Server’. Right-click, then select 'Restart'.
- Open Firefox and type the following into the address bar to bring up the DHCP server window: http://localhost:6789.
- Confirm that under ‘Active leases’ you can see the MAC address corresponding to the OpenDHCPServer.ini with the Hostname ‘autofluidics’.
If you encounter any problems read the troubleshooting section at the end of this work document.
Test the new Automated Fluidics
1. Open Bluelake and confirm that you can see no errors visible in the valve control panel.

If the AFL does not connect to Bluelake, restart the Open DHCP Server(Configure DHCP device, step 4) and wait 30 seconds before restarting Bluelake.
2. Make sure that you can audibly hear each valve move as it is selected in Bluelake
- Select each valve individually, and ensure you can see a blue light on the AFL corresponding with the valve position.
3. Open all the actuators using the ‘Open All’ button in Bluelake.
4. Secure the valves to the new Automated Fluidics assembly.
5. Close all valves.
Finalizing
1. Pack the faulty AFL into the box that the replacement arrived in.
2. A return label should be supplied with every shipment; if you cannot find the return label contact customer support through your ticket and they will provide you with your return label.
3. Contact customer support and provide them with the tracking number of the package who will arrange the collection of your package with the courier.
Troubleshooting
If the following troubleshooting steps do not work, contact customer support(support@lumicks.com) via the support ticket for the replacement and clearly describe the problem you are experiencing.