We have a Mira Advance shower that was installed several years ago.
It has worked faultlessly until a week or so ago when the double pole
switch began to make an electrical hum when the shower was on. It only
made the noise when the shower was actually heating, running cold it
was silent, it was defiantly the switch and not the shower making the
noise. Anyway I changed the switch and all was fine.
Yesterday the shower itself started to make a noise, a sort of deep
vibrating hum, again only when it is heating. Any ideas on what the
fault is and how it can be fixed?
Any help much appreciated-