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Dissolve about one tablespoon of citric acid in the water reservoir.
Fill the boiler completely. Open the steam valve and start a hot water cycle until water comes out the steam vent. Stop the hot water cycle, close the vent.
Let the boiler heat up about 5 minutes. Then turn off the power.
Let the acid solution work for about 1/2 hour.
Pull a 30 second shot to change the water in the boiler.
Repeat flushing cycles (steps 3, 4, & 5) until the water looks clear. Refill the reservoir with water and acid as needed.
Wash out the water reservoir.
Pull 5 or shots to get the acidic water out of the boiler. Run a hot water cycle to clean the acidic water out of the steam vent.
Let the unit come to temperature and look for leaks.
1; Second hose is for expansion valve from pump, in case there is excess pressure the water returns to the reservoir.
2; Either the coffee is stale or the amount of tamp pressure is not enough. Think of your grind coarseness rocks and sand, that will help you find the right grind.
3; No
4; Yes it is normal. You need a higher temp for steam than for coffee, therefore the thermostat on the machine is programmed to get the water in the boiler to steam temp when you ask for steam, a few seconds at the most.
Remove the top panel and check the 3 thermostat on the machine one of them is not functioning properly, find the wire to the steam switch and trace it to the thermostat.
I disagree... I think its the thermostat reset switch. A little red button once you open up the machine. look towards the front of the boiler and bush the button. Same thing happened to my Rancilio Silvia.... I opened it up, hit the reset switch... and voila! Working again! Here's the YouTube Video on the details. http://www.youtube.com/watch?v=zQdJNm9RV68
Well, I have little exposure to Saeco, but a lot to commercial coffee machines.
Saeco have a lot of custom made components, although these can be purchased, nothing is cheap! Neither is their repair service!
First, is the boiler heating?? If so:
No hot water/ no steam suggests a blockage. Assuming you can hear the pump working when attempting to do a coffee, you will probably find the water flowing back into the water tank via the relief valve. Of course, this valve itself could be the problem, or the pump failing to work through a blocked inlet filter or other problem.
Look now at the group head. Ever cleaned it? The filter and spray block should be removable, do so and clean them carefully. While you have them out, see whether water reaches the head by "making a coffee" into a cup placed under the head. BE CAREFUL OF SCALDING. If water now flows, cleaning the screen and spray block should restore operation.
Beyond that, it's inside the machine! There is a 3- way valve that operates when making a coffee. This can become clogged with coffee. There is another valve to open the steam.
If, like Saecos I have worked on, the boiler does both the hot water and the steam one at a time, look for problems BEFORE the boiler.
Hoe this helps a little....
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