Sparkies help please

[Maccapacca]

Have a cooker on its own 32amp rcd but the cooker keeps tripping the whole house not just its own rcd, it works when you manually trip it as the cooker goes off.

Its annoying because its intermittent

cheers

 

[MeEsH BaKkA]

When you say the whole house do you mean the main switch (prob the big red one)?

Edit also a pic of your fuseboard would be helpful

 

[Maccapacca]

yes it throws the main but not its own or any others

 

[JohnnyG]

Do you mean the cooker is not tripping it's own RCBO (mini RCD) or MCB (fuse)? An RCBO will have a 'Test' button on it an MCB won't.
If it's tripping the 'main switch' I'm guessing that you have a single RCD upfront of the whole fuseboard which trips suggesting that the heating element is on it's way out

 

[wonko]

An rcd normally protects multiple circuits - it would be unusual to have one just for a cooker circuit.

The cooker circuit should have an mcb (modern equivalent of a fuse). If that's not tripping then I'd suspect that your cooker has an earth fault (e.g. a faulty heating element) and it's your rcd that's tripping.

Edit: beaten to it!

 

[Maccapacca]

yes there is a bank of mini rcds and the main rcd it'll throw the main not its own mini 32 amp rcd

cheers

 

[JohnnyG]

Are you sure you're not confusing RCD's with MCB's?
Is there a 'Test' button on what you think are mini RCD's?

 

[Maccapacca]

yes there is a test button on the minis

 

[JohnnyG]

And when you press the test button does the switch go down?

 

[Maccapacca]

yep

 

[JohnnyG]

The RCBO's shouldn't be connected upstream to any other RCD unless you have what's called a TT earthing system + a 100ma RCD main switch.
Any chance of any pics of the fuse box?