I have got an immersion heater which has a timer switch connected to it, unfortunately the switch has died (only a few months old) I have contacted the supplier and they are sending out a replacement but this leaves me without water until it arrives. What I want to do is connect the old switch back up so I can have some hot water until it arrives, I just want to check I get the wiring correct before I go ahead. The switch has 2 terminals on the top marked 1 and 2 and 2 terminals on the bottom with 2 earth terminals on the side. I know where the earth goes but I'm not 100% sure about the rest - this is what I think:
RED and BLACK from mains to terminals 1 and 2
BROWN and BLUE from Immersion heater in bottom terminals
Does this sound correct and does it matter which terminal each colour is connected to?