Hi, I have a Redring Expressions 550s shower. As soon as I turn the knob towards the red/hot water the pressure of the water decreases and the water cuts off as it turns cold. The low pressure light comes on as soon as the gauge is at after 4. At 3 & 4 is warm, if you want it hotter at 5 or above the pressure light comes on. How do I SOLVE this problem? Is it parts or blockage?

kamal mahey, March 2016

There are several reasons,do you have to turn the dial to a hotter setting than previously in which case an element is not working.
Is the shower head spraying properly ie all fine jets.
If all ok it could be a lack of pressure

toptrish, March 2016