RCD keeps tripping out

[cheshiremulisha]

Hi the RCD in my house keeps tripping out whenever I use any appliances on the downstairs circuit. As well as the plugs circuits the RCD trips all other circuits including lights and the boiler etc.

A friend at work advised me to use a multimeter to test the resistance of the plugs downstairs to see which is the faulty plug and when I do this I get a reading on all of the plugs when I test neutral to earth. Is this normal???
Testing live to earth and live to neutral doesn't give me any readings.

Any help / advice would be greatly apreciated, thanks!

 

[RF Lighting]

It is perfectly normal to get a reading neutral to earth if your main switch is switched on. Testing each socket will tell you nothing as they are all connected together. Does the RCD stay on when you use things on protected circuits other than the downstairs ring? Have you unplugged everything of the downstairs ring? Does the RCD trip as soon as you plug anything in or just certain appliances?

 

[cheshiremulisha]

I have unplugged everything from downstairs and then the electric is fine throughout the rest of the house.
It doesn't matter what is plugged in downstairs to trip the RCD, - fridge, freezer, kettle, tv etc.

 

[securespark]

I had this the other day at a customer's property and was a bit baffled, but turned out it was a bog standard n/e fault on the ring. You're gonna need an IR tester...