123hotchef
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- 13,933
- Location
- Kent
it could just be induced voltage and I really do not have any problems! just a dodgy cheap out door light fitting
Check you aren't switching any neutrals. Is that 20v reading between live and earth with the light off?
Not sure I would have to lift the floor boards. But that would not cause 16v when switched offAny central heating pipes involved? has a cable melted thru? ive seen that before, going to ground on the copper pipe.