Mira sport 8.5? when i first put on the shower its ok after 20...

when i first put on the shower its ok after 20 secs low pressure light comes on and i enjoy no pressure and the water is fundamentally very hot whats the problem
Answers:    These showers are doomed to failure for the pilot valve going unsound.Phone Mira's tech helpline,they will point you in the right direction and convey you the part you call for.
make sure you own enough pressure on the inlet side. To do this, turn on the shower and next any cold tap. If hose from the shower head slows down, its a pressure problem. It could be simply that your fundamental stop tap is not turned fully on.