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Pressure gauge ECM Giotto Premium not functioning

Hi, I have a problem with the pressure gauge lately. tried descaling which I had to do anyway but that did not solve this problem.
Any idea doesn't get used a lot last time 2 months ago.

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  • olev Mar 21, 2009

    First of all, this is no rocket science. The entire machine is built from industrial fittingns and European 6/4 mm or 10/8 mm cupper pipes. Open the machine and - eureka. 2 or 3 fixed keys will open the pandoras box! PLS !! take a few Digital photos PRIOR to open the machine. Otherwise you end up with a box of pipe details - with no home. A lot od the parts can fit two ways! Check valves get filled with scale and need manual cleaning after some years. Forget about chemical cleaning as it does not reach the boiler itself. Filling the tank with anti scale distoys the element. The pipes themselves get bocked with time/// Olev

  • boonzajer May 11, 2010

    Are you relating to the pressostat, to the probing stick or to the pressure meter on front?


5 Suggested Answers

SOURCE: ECM Giotto Premium (S/N 20030100413, purchased May 2003)

Often the problem is the reservoir sensors think the water tank is empty. The metal rods that go into the white plastic tank are the sensors, and they contact the sides of the machine to provide an electrical ground. The water needs to be normal tap water, distilled water will not conduct...
At any rate, the fix is to simply jiggle the tank left to right to roughen up or clean the contact between the sensors and the body of the machine. Within a few minutes the machine should start to heat up, now that it knows you have water.
Hope that helps!

Posted on Jul 15, 2008

  • 9 Answers

SOURCE: No Pressure..No heat

Se my solution re no heat on page. pressostate or microswitch fail is easy to fix. many times the water tank is bebt out of shape with time. A twisted tank lift one side and tank is no longer resting on four points. This cause no contact with electrodes inside tank saying = no water = no power allowed. The GROUND must be established! A small piece of alu foil rolled to a ball will help to ground the electrode again. Lift the tank gently and find the two v - shaped contacts for the electrodes. Have also replaced the electronic box once :-( on friends ECM /// olev

Posted on Mar 21, 2009

  • 9 Answers

SOURCE: ecm giotto repair

Jonny boy,,If you ever had a Macano box as a kid, tthe best man to fix the machine is you! Take many photos before opening the pipework. Clean out the scale and learn about your machine! No kidding, you brew a better coffee after that. You know ALL the functions after looking into the machine + ther are some ways to tweek it too. Steam press cam be set as well as water amount. I brwe a better espesso tha I get on town. Thick light brown crema. I gave upo with the dealer and hes so called repair people /// Olev

Posted on Mar 21, 2009

  • 1618 Answers

SOURCE: ECM Giotto group gasket and shower plate falling out

I am assuming that you have basket style shower which sits in the gasket and then inserts in the group.
Find the small bevel edge on the gasket, make sure that side is facing up, place gasket on table then insert shower in gasket, then lift gasket, until it sits at the top of the shower(use a small flat screwdriver or a small hard brush to clean the group where the gaskets seats), then insert gasket and shower in group. Push in as far as you can then use the portafilter to seat the gasket in all the way.

If your shower is the flat style then there should be a hole in the middle for a screw.

Posted on May 30, 2009

  • 1711 Answers


The pressostat can be full of scale. You can remove it when the machine is cold descale it and also use a litle lubricate so the part can move more easily. You migh need a new mebrane since it might have be damage but if you dong have you can cut a plastic the same round shape of the mebrane and put the both back again so that no steam will escape from the mabrane.

Posted on Feb 16, 2010

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