Drained the tank & removed the old one.. The copper element had corroded so much that the heating wire was visible, broken & touching the other element. Fitted new dual element immersion €27 & added an immersion timer plus double lagged the tank. First bath was a bit rusty coloured but it worked...
I have a dual Element 2Kw/3Kw immersion heater installed on the top of my hot water tank. This is wired through a bath/sink switch & has been working fine for last 2 years. However it trips the consumer unit fuse if switch on either setting. I checked the wiring in the switch & all is fine here...