Question about Rancilio Epoca ST

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Rancilio epoca - heating element continue to stick on

On my 2 group commercial machine - when the machine heats up the water in the boiler - it will not stop in the green like it used to - contines way into the red then the release valve goes off to relieve heat-
we thought it was the 3/8 gasket that went out - have had that happen before - but not he case - watched it and continues to get hotter and hotter - like a thermostat - looked at my diagram of machine and not sure which part it is - any help would be great

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I have an epoca de 2 group manufacture 11/2004. I replaced the Parker pressure switch ( I Had to do alot of research to find out it didnt have the sarai pressure switch)when it was overheating and it works.

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It's the thermostat for certain.

Te release valve is put there it be sure the tank pressure doesn't get too high such as to cause a steam explosion/rupture of the tank.

Posted on Jan 30, 2009

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