If the handle in the back is not going completely down, check to make sure you are using the correct cylinder. The cylinders with the clear seal and blue label will not work with your DUO machine.
To properly insert the cylinder, first raise the pink cylinder handle and remove the seal and cap from the cylinder. Position the bottom of the cylinder in the machine and then gently place the rest of the cylinder into the cylinder holder, located on the underside of the carbonating button. Lower the cylinder handle to lock it and replace the back cover so it clicks into place.
Questions? Contact us via email or phone at 0800-0223637 (NL) | 0800-74801 (BE) | 0800-28527 (LUX).