Possible Causes:

The Q6 Valve (drain valve) is not opening correctly or there is a line blockage between the Q6 valve and the vessel. To best assist you, it would be helpful to run a test which will take approximately 10 minutes. Please contact ANKOM with your results.

To test:

  1. Verify that the Q6 solenoid, (the electrical connector) has not been swapped with the Q5 solenoid. If you are looking at the XT15 from the front, the solenoid marked Q6 should be on the right, the Q5 Valve should be on the left. If these were accidentally swapped, this would cause the problem.
  2. Remove the Q6 solenoid and open the Q6 valve. See XT Service Procedure #5
  3. Check the filter. It may need to be cleaned. See XT15 Service Procedure #17.
  4. Remove the long tube that connects the Q6 valve to the vessel, and the short tube that connects Q6 with the condenser.
  5. Run air or nitrogen through both tubes to make sure they are not blocked.
  6. Blow air or nitrogen through all ports on the valve to make sure there is no blockage in the valve.
  7. Open the vessel and blow air through the tube connection on the back of the XT15, to confirm air travels into
    the vessel.
  8. Replace the rubber tip on the Q6 Valve Piston if you have a spare, and put the Q6 valve back together.
  9. Reconnect the 2 tubes.
  10. Verify that the white Teflon Cup does not have any blocked ports.
  11. Close the vessel.
  12. Run a 10 minute extraction. At the end of the extraction, when the screen goes to "Draining" start a timer and record the pressure every minute. After the pressure reaches zero, record the time. Then record the time when the screen says "Cooling".
  13. Contact ANKOM with your results.
    Pressure when "Draining" starts (start timer) ____
    Pressure at Minute 1,2,3,4,5,6, __,__,__,__,__,__
    # of minutes until "Cooling" cycle starts ______ Pressure at start of "Cooling Cycle"______