Jobs & Education2 mins ago
Immersion Heater Timer Switch
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.
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.
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