Question about Astra Mega II Espresso Machine

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Water flow We purchased a used astra machine and it is automatic, but it doesn't seem to pump enough water for a shot of espresso. How can we adjust the amount?

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  • Anonymous Jan 11, 2008

    water flow

  • Architect70 Aug 08, 2008

    Water just trickles out and then stops. Checked all water supply valves and they are on and working... Water isn't very hot either...

  • aslan77 May 11, 2010

    Are you saying that the water flowing through the group head screen isn't coming out with enough volume, or that it isn't on long enough to pull a whole shot?

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You will have to adjust your shot timing, and possibly your grind. To program the shot timing, hold the Brew Stop button until all of the brew lights come on; That means all of the buttons are ready to program. Next, pull some grind for your portafilter and push the button you want to program. For a single, you want to pull a 1 oz shot in about 15-20 seconds; longer for a double. When you push the button, the shot will start to pull; when the shot is complete, push the button again to set it. Then do the same for the next button. Each group needs to be programed separately. Holding the the Brew Stop button again will turn out the remaining lights and save your programming to that point. As to the grind, you want to have the grind fine enough to give you a quality shot in the right amount of time. Good Luck!

Posted on Aug 29, 2009

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You will need to reprogram the computer. To do this, it is relatively simple. take your grounds and tamp into your portafilter (I usually start with a double). make sure that you tamp it correctly.

Then, hold down the start/stop button until you see the lights flashing on the panel (if you want to program both groupheads at the same time, then hit the start/stop button on the other side as well.) Then with your portafilter inserted in the grouphead, hit the button that you would like to represent your double shot. you should see a water stream about the width of a cooked piece of spaghetti. After around 18 seconds to 22 seconds, you should have your shot levels filled. then hit the button that represents your 'double' shot to stop it. then hit the start/stop button. You will see the start stop button flash a couple times and then turn off.

That should do it. remember, that the preferred timeframe for a shot of espresso is 18-22 seconds. Your setting on the coffee grinder would then need to be set to make sure your getting a full shot in that amount of time.

Good luck

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