When I push the button to start making the espresso, water comes out from the top of the head as well as from the bottom spouts, where it is supposed to. Any ideas? I have brushed the excess coffee grounds out from the upper rim and cleaned the machine.
I researched some sites that sell the Pasquini Livia 90 and found out that the leak is most likely caused by a rubber gasket needing to be replaced. Since they recommend a yearly replacement and this has not been done in over 3 years, it seems likely that this is the cause.
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It should not leak steam out of the grouphead. The three way valve is leaking.
First of all if it is new, get it fixed under warranty. The three way valve is a replaceable item.
On the other hand if you are like me, you can try a back flush with just a tiny bit of coffee machine detergent like "Joe-Glo". The directions might say not to do this but if it is my machine, it's my machine
Get a rubber disk for back flushing. Any place that sells the detergent should sell the disk.
Put the disk in the portafilter and add just a few grains of detergent.
Install the portafilter and "brew" for about 20 seconds, then switch of for 15 seconds or so..
Refill the water reservoir as needed.
Repeat the "brew" cycle until you get "detergent water" in the catch pan. It may take 6 to 8 cycles.
Remove the back flush disk from the portafilter, reinstall, and run a couple of normal 30 second brew cycles to flush detergent out the valve and grouphead.
If this was a coffee maker in service for a while and might have a water scale buildup, I would do the same thing but I would dissolve some citric acid in the water reservoir and descale the boiler, valve, and grouphead at the same time.
First we have to figure out where the water is going, because if the pump is running the water has to go somewhere. either the boiler or coming out the groupheads or there is a leak? If the groupheads check the manual switches make sure they are in the off position. If the boiler check the wire on the level probe, the inlet solenoid and sight glass to see the amount of water in the boiler. If there are no leaks then there might be a problem with the mainboard.
Correct, inside the grouphead their is a gasket which is the same diameter as the filterholter which make the perfect fit so the presure of the water will not leak out. So now either the gasket is damage in one point so you have the leak from that point. Second the gasket have become hard so it can not make perfect fit with filter holder. In both above case you have to replace the gasket. Finally their is aposibility that the gasket is dirty with coffee remains and again we can not have a perfect fit. You can use a hard brash with the water running so you can clean the gasket.
With this case you can unsrew also the shower from the grouphead and clean it also for better coffe results
Remove the shower screen and press button to brew, if water flows the the holes in the screw/diffuser is blocked, if water does not flow then the blockage is at the solenoid or within the group head chamber. This problem I have notice when someone brewed without the shower and screw in place.
For the grouphead check the basket there might be a slight bump around the edge that is preventing it from making a good seal when it contacts the gasket in the head. If the Double works fine then the gasket is not the problem. For the steam wand try flushing wand for 3 seconds just before steaming, if that does not help with the watery milk, then the boiler is not getting hot enough to produce steam.
I apologize if I offend you in saying this, but perhaps check the steam knob and make sure it is off, turned all the way away from you. If the knob is even a little bit engaged the water will bypass the brew group significantly.
Otherwise, your shower screen may be severely clogged, though I doubt this is the case if you have only made one cup of espresso. Give it a look though, and scrub it off with hot water and a grouphead brush--or a dedicated vegetable scrubber brush (my preference :)
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.