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All done, thanks

So the brown wire should be on terminal 3?

Great plumber just cancelled

I didn't notice the scotch mark until I took the photo I've finally managed to get a plumber to answer their phone, hopefully coming out tomorrow, and yes I did tell him what I did! Didn't go down well

Hi hope you can help me I've got a Worcester 20/25 oil boiler had a problem with the transformer, got a new one When I took the control box off and the box where the wires get connected too, the brown wire for the transformer came loose, so I presume that might have been the problem, but I...