RCD tripping

[dancar]

I've just had a new consumer unit fitted. its a split load with the cooker/light on the main switch side and 3 rings circuits and an ouside circuit (pumps etc).
However, now its been installed the RCD keeps tripping, but no MCBs trip. Its an 80A 30mA one. I thought it was overloading but i doubt that now as it trips when the kettle is sometimes switched on. When alot of things are on it also sometimes trips, but its nowhere near 80A in total on.
What can I do to find the cause? If I unplug everything then plug them back in 1 by 1, it might not trip as it only sometimes trips?. Any help would be wicked

 

[JohnD]

Was it fitted by a qualified electrician? Have you got an Electrical Installation Certificate that shows test results?

Edited: I think I know the answer to this question now //www.diynot.com/forums/viewtopic.php?p=422969&highlight=#422969

 

[dancar]

I was going to fit myself, but bottled it. Yeh, an electrician fitted it and tested it, but I cant get in touch with him to come have a look

 

[slippyr4]

it's a bit mean blaming a fictitious electrician for your own screwed up consumer unit install.

you should get yourself some spurs and a stetson and make a career of this electric malarky.

Perhaps if you tell us what you really did, and maybe even some photographs of the mess you've made, we might help you out.

 

[securespark]

you should get yourself some spurs and a stetson

Fused spurs?

 

[plugwash]

a neutral going back to the wrong side (e.g. a borrowed neutral from the ring for a wall light with the live coming off the lighting circuit) or a neutral to earth fault on a circuit on the RCD side are the usual culprits for RCD problems immediately after a CU upgrade.

old/dodgy appliances can be the cause too.