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Lelit MaraX no pressure after filter installataion

11K views 36 replies 4 participants last post by  MediumRoastSteam  
@Proov I think the system is airlocked...when you put the filter in I think it may have been dry and airlocked the system.


  • Remove any filter

  • fill the tank completely

  • Remove the portafilter

  • raise the lever to get water flowing through the group
 
@Proov There is only 3 things it can be, because in your video, you don't mention any other symptoms:


  • Air in the brew circuit

  • Pump Failed

  • Autofill solenoid jammed in the boiler fill position (that would be obvious within a very short time, so I don't think it's this)

Occams razor applies
 
@Proov If everything comes out of the expansion valve which leads to the drip tray it would indicate the pump is making over 9 bar.

Fill the tank, run the pump against a blind filter...is water coming out of the little pipe that leads into the drip tray and filling up the drip tray. Do just this test and nothing else...then report back. Do a video is you can, upload to youtube as unlisted and link here.
 
I think contact the vendor...it may well be the pump has either failed or is blocked, hard to think what else it can be to be honest. Changing the pump is very easy and rather than risk transportation, it may be something they ask you if you want to try.


  • If it was a blockage in the group, it would be filling the drip tray

  • the pressure needle isn't moving at all really
 
@Proov

This is the correct pump (I have a few of them)...the Ulka will be much noisier. Perhaps the retailer didn't have any in stock, but you should ask them to send you the right pump, so you can fit it yourself later. The Lelit pump also costs a lot more.

The correct Lelit pump is


  • quieter

  • has that nice gradual ramp that gives such a great shot

 

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