I recently received a call from a friend whose electric shower unit had suddenly stopped working correctly, even though the water flowed it was not reaching temperature, and I assumed the heating elements in the shower water tank must have failed. After testing the elements and checking connections etc, I could not find any fault, other than two micro switches that did not always operate. I opened the water stop valve to the property by an extra 1 1/2 turns, the shower worked perfectly as before. The low water pressure diaphragm in the shower unit (this is a safety device to avoid … [Read more...]