Dear Customer, There have been some changes in our product. Therefore, please click on the corresponding tab above to look up the information for your individual product. For products with the serial number 8860119052 and higher (purchased from January 2023 onwards), please click on the tab named "Art. No. 12784". For products with the serial number 8860119051 and lower, please click on the tab named "Art. No. 11414". You'll find the serial number at the label in front of your product's valve block (below the electronic control).

To exchange the flow sensor:
1. Remove the controller from the valve block as described in Removing the controller from the valve block.
2. Remove the locking ring using needle-nose-pliers.
3. Pull out the existing flow sensor with the cable.
4. Disconnect the cable of the flow sensor.



5. Apply some food grade grease to the O-rings of the new flow sensor.
6. Connect the cable to the new flow sensor.
7. Insert the flow sensor into the valve block in the correct position.
8. Secure the sensor by attaching the locking ring (Art. no. 11354) onto the sensor using needle-nose-pliers.
9. Put the controller back on the valve block and attach its four screws.

To exchange the flow sensor:
1. Remove the controller from the valve block as described in Removing the controller from the valve block.
2. Remove the locking ring using needle-nose-pliers.
3. Pull out the existing flow sensor with the cable.
4. Disconnect the cable of the flow sensor.



5. Apply some food grade grease to the O-rings of the new flow sensor.
6. Connect the cable to the new flow sensor.
7. Insert the flow sensor into the valve block in the correct position.
8. Secure the sensor by attaching the locking ring (Art. no. 11354) onto the sensor using needle-nose-pliers.
9. Put the controller back on the valve block and attach its four screws.