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Brian, Plumber
Category: UK Plumbing
Satisfied Customers: 827
Experience:  16 yrs. experience as plumber, including full bathroom and kitchen installations.
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I have a Worcester combi boiler and a Prima thermostatic

Customer Question

I have a Worcester combi boiler and a Prima thermostatic shower working together satisfactorily for several years. Recently water to the shower only remains hot for about 1 minute before going cold and then barely luke warm before going cold again. Can you please suggest what the problem might be Thank you
Submitted: 7 months ago.
Category: UK Plumbing
Expert:  Brian replied 7 months ago.

If its not the shower.

You will need to look at the plate heat exchanger in the boiler.

Im presuming this doesnt happen when you run a tap.

so as an experiment try running a hot tap just a little while you are also running the shower.

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