This question is regarding Mira Azora/Sprint/Sport/Zest Thermal Cut-out (TCO) - 416.41

Pressure drop when heat turned up

I have a Mira Azura shower which is less than two years old. Cold water setting gives full power but when turned up to hot pressure it drops dramatically. This has only happened over the last week. Water pressure to the house is fine, any ideas. Many thanks
Asked 4 years ago by Christopher Bush, Oldham
This is often the case at this time of year as the incoming water temperature drops, the shower has to work harder.
If the temperature has dropped dramatically to the point that it is uncomfortable to shower then you may have a faulty element in the heating than or a faulty micro switch not allowing power to one of the elements.

The other possibility is the mixing valve at the foot of the heating tank could be faulty.

As a VERY rough guide you should expect 5.5 lts per min with a 20 degree temperature rise

Answered 4 years ago by George Thomson

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