Oven tripping RCD

[lewie]

Wondering if the collective could assist
I bought new unused oven from ebay apparently ex demo
The one it replaced was a plug in sub 3kw single oven - this is 3.5 and there was a 6mm cooker cable in the aperture ( turned off at the board 32 amp mcb)
I wired this into the rear of said oven and all seemed good - set the clock but as soon as I selected any programme it trips the RCD
Seemed to sit happily with just the clock on it was only when I selected a programme I could almost detect the power turning on and it just tripped
I’m try to ascertain if it’s a dodgy oven or the wiring - I’m thinking as it doesn’t trip when it’s turned on it’s pointing to a faulty oven
I’ve removed it for now and plugged the old unit back in for now
Any pointers would be appreciated

[adrianw]

From what you say, it is the oven, probably earth leakage, can you measure between live and earth with the oven disconnected , if it has mechanical controls turn the oven on and see if you get anything, if it has electronic controls it is far more complicated

[lewie]

Thanks for the reply
This is the model https://www.manualslib.com/products/...x-1710383.html
It has pre programmed dial as far as I can see
I’ve contacted the seller I’ve a feeling it’s got wet at some point - maybe

[MB2]

Check the wires are the same length. I had a tripping hot tub and the
electrician re cut the wires so they were closer to the same length

[learningtofly]

Check the wires are the same length. I had a tripping hot tub and the
electrician re cut the wires so they were closer to the same length

Does that make the wires a tripping hazard?








I’ll get me coat!

[wotsthecrack]

I've had this with an existing oven, turned out to be a faulty heating element which I replaced for the princely sum of £7.99.

[acg]

I've had this with an existing oven, turned out to be a faulty heating element which I replaced for the princely sum of £7.99.

Yep, that matches my experience. The fan and light would work but as soon as the element was turned on it tripped.

[lenlec]

It’s often a faulty element tripping the rcd / breaker

[Phil Lee]

I had something similar with our main oven cooking the Sunday roast. Gave the oven a good clean and things improved.

[Chris_in_the_UK]

Check the wires are the same length. I had a tripping hot tub and the
electrician re cut the wires so they were closer to the same length

I suspect he was winding you up.

[Rinaldo1711]

Does that make the wires a tripping hazard?








I’ll get me coat!

[Essexstu]

Usually a heating element. When not used they get a bit damp and the elements go first. Usually around £30 for the part