My tea has had a group head rebuild with new seals etc. Tank was descaled as well. All working fine, but the problem I have is that pressure builds up and then the pressure valve releases steam constantly. (it has been replaced and same prob) I can use the steam wand and hot water spout after first start up, but when the pressure is exhausted it doesn't build up again and yet the pressure valve is releasing steam. The group head on the other hand does still release water on activation of the lever( not sure if it has enough pressure for a shot as I haven't bothered due to the other problem).
Could anyone give advise on what could be causing the problems. The machine has had up to 7 or 8 shots a day for over 10 years with only minor wear and tear issues
Could anyone give advise on what could be causing the problems. The machine has had up to 7 or 8 shots a day for over 10 years with only minor wear and tear issues

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