0 Espresso machine groupheads lost temperature Posted by Graeme Duhamel on April 7, 2011 at 8:30pm in Equipment & Tech I use an lm linea 4-av. The problem has arisen before but I was not available to converse with the engineer that came to repair it. Basically two of the four groupheads lost temperature. You need to be a member of Barista Exchange to add comments! Join Barista Exchange Email me when people reply – Follow
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