Immersion Heater Timer Switch

keithlbw | 13:41 Fri 05th Sep 2008 | How it Works

3 Answers

HELP
I've just bought a timer switch for my immersion heater.The instructions say connect the live from the SUPPLY to terminal 2 and the live from the HEATER to terminal 1 . Neutral wire is not a problem as both go to terminal 3. Earth is not a problem either.

When I take my old on/off switch off the wall how do I know which live is supply and which is to the heater.

Also posted in Home and Garden under DIY.

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dipee65

I presume the switch is remote from the immersion heater, so you can't simply tell by visual inspection which is which.
The live incoming supply wire should go to a terminal marked "Live" or L1. Another clue is if there's an neon indicator on the old switch then its wires will go into the OUT side of the switch.

keithlbw

Question Author

Have you been looking behind my switches Alan.

Your answer was spot on.
Thanks a million for a quick answer.

Regards Keith.

buildersmate

They're all wired like that.

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