Sorry my bad. I wrote that last post quickly before I left work. I double checked the wiring at home and it matches your pic Steve.
Live wire from the Immersion switch to SL (switched live)
Neutral wire from Immersion switch to left N (appliance neutral).
Neutral wire from CU to right N...
No there was no timer there before. I cut the flex joining the CU and the Immersion switch and wired the timer in between.
CU ------> Timer ----> Immersion Switch ----> Immersion
I haven't messed with any of the cables linking the immersion switch to the immersion heater.
Here's a snap...
Hi all. This may have been answered loads of times before but I couldn't find an answer using the search.
I've installed an electronic immersion timer (Timeguard ETU2000) between the CU and the On-Off/Sink-Bath switch of the immersion in our house. The wiring was straightforward L/N in from...