|Posted by wayne on January 20, 2004 at 17:32:26:|
I have a Worcester 9.24 combination boiler that is 10 years old. when running the hot what the flow decreases down to a trickle and there is a hissing noise from the bottom right hand side of boiler. A new summer winter valve has been fitted but the problem still remains. The mains cold water pressure and flow is fine. The fault is intermittent but becoming more frequent. Can you give any possible suggestions to the cause as me the useless gas man and the water board have given up.
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