The most common, and extremely simple reason for a loss of pressure in an electric shower system is a blocked shower head.
Typically, shower heads will collect mineral residue whilst in use. Then, after the water has been switched off, the mineral deposits will bond together over time, forming a build-up of limescale within your shower head or pipes.
Our blog, How to Descale a Shower Head, offers a full explanation as to how you can tackle the issue.
