Shower that runs from combi boiler

I have a shower that runs from my combi boiler. When the shower is turned on it is hot then make a clicking noise and goes ice cold then goes hot again. This happens every minute of less. I had a plumber round who fitted a new shower and it's still doing the same thing. Any advise please

1 Answers

Hi, due to the mechanics of mixer shower, to work correctly the pressure from the hot and cold should be the same or close. A pressure equalizing valve would correct the problem
Goodluck
Regards
Craig
6th Nov 2020
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