Miras sport shower. Low pressure on heated settings?

Question

Water pressure ok on cold setting. If I turn up the heat control it says overheating and low pressure light comes on. Have descaled showerhead and checked hose.

Answer 1

It is furred up inside. Repair will cost more than replacing.  Sorry.

Answer 2

turn off the electric supply and water to the shower. take off lid (s***w under unit) and see where the water feed enters the shower? on the other side of this part is a hexagonal shaped plastic nut. undo that take out filter and clean. put back together making sure the flat cable is still connected to the lid .

Answer 3

The pilot valve will be at fault,roughly about £35 from mira,an hour to change for a competent DIYer.

Answer 4

I would have to agree with Boggy,s answer ( & I'm sorry as well! )