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If it does that every time the pump is on then it is possible that the pump needs to be repaired or it is set too high for pressure possible past 10 bar, if it does it only when running a specific grouphead then your solenoid needs to be replaced.
Try Mr. Espresso in Oakland, CA www.mrespresso.com. While they don't typically supply Astra, I believe they are familiar with the brand and can refer you to a technician if they can't service it themselves. Astra will also service their own machines, but you would probably have to ship it to their shop in LA.
Hi, I'm new to the coffee business and justed purchased this machine and no manual as well.
I just called the astra manufacturer (1-877-340-1800 ) and they were going to e-mail me a manual free of charge. Hope this helps. J Howell
The error light usually comes on when there is no water flow through the group after about 5 - 10 seconds, indicating a clog of some sort. The fact that it happens after two shots, however could indicate an issue with the processor. The problem with the steam wand could also point to a clog situation, especially in the other wand is working. First, try running shots through the problem group with no grounds at all in the portafilter; Say five or six shots if you can to see if you get the error light. Look at the water flow in the process: The water should just pour out of the portafilter. If the water is running freely and you still get the error light, you are probably looking at a processor/sensor problem. If not, it may just be a restriction. Remove the screw from the middle of the group head (the diffuser), and remove the screen and the brass plate and check them for clogging. You really want to wait until the machine is cold before you do so as the parts will be extremely hot. As for the wand, try removing it, and check it for obstruction.
Go ahead and keep the sensor probe connected. Open up the steam wands before turning the machine on the let the air bleed off as it fills. The element should not turn on if the water level is too low and the circuit is working properly. As for the groups pumping water, try hitting the Brew Stop buttons. If that doesn't work, something may be wired wrong, or your group solenoids may be stuck.
The left grouphead sounds like a different problem than the right group head. For the left grouphead, I would start by replacing the group electro-valve. With hard water, this can cause the valve to remain in the closed position even though the water pump is running.
For the right group head, I would want to see this happen. Usually, if the gaskets haven't been replaced in a while (if you are busy, your 'while' may be quicker than others), I would evaluate the condition of the rubber gasket. I would also look at whether you are tamping too much espresso grounds into the portafilter. This can cause a similar symptom as a bad gasket.
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!