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Brian, Plumber
Category: UK Plumbing
Satisfied Customers: 840
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: 10 months ago.
Category: UK Plumbing
Expert:  Brian replied 10 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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