Shower head has been in bucket for half hour plus no sign of leak here. Also no sign of external link in feed-in or feed out to pump.
hello, message says you've stepped out of chat. I assume you ran out of ideas! @link' in my previous not should have read
Hello. Message says you've stepped out of chat. Assume you had nothing more to say!
Yes seems to be at night, but may be disguised by other noises or happen when we are out during the day. However, hot water tank is below the power unit and cold feed seems to be from header tank next to the unit in the loft. Power unit thinks the shower is on, but as there seems to be no air lock and no leakage from the shower heads my guess is that there is a fault in the unit triggering this response. How easy is this to diagnose/repair?
There is a flow switch that clicks when the water is flowing - if you take the cover off you will see it near where the water goes out, follow the hose back to the unit and follow the flow of water
Yup. Fault in unit.