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Hi, I have a C&M boiler that keeps switching off, the red overheating lights comes on and after a while you can reset it and all is fine..till the next time. On inspection all the 'baffles' in the flue had become detached due to the rivets failing. All rivets where replaced and still it...

Thanks for that, it would appear that is what I have and someone has wired the socket up wrong. Now for the interesting bit.;.. I have a piece of equipment that uses a 3 phase motor, the motor is wired up in the star configuration ( i think thats how its called! six terminals, three on one side...

thats not good, I only 240v between the phases except for between blue and brown which is 400v. I'll check between each phase and earth and see what that throws up. of course it might be hat the wire are messed up and what I think is earth (green/yellow) is actually a phase. oh! deep joy

G'day, can anyone tell me what voltage I should get at a 3 phase socket and how to test it? there are three wires plus earth and across two sets of two wires I get 240 v across th eother set I get 400v. and I don't think that is right. thanks