Appliance tripping mystery . . .

[theflyingpig]

Hi All,

My mate recently bought a breadmaker - Breville, rated at 450 Watt. Every time he tries to use it it trips his kitchen ring fuse. Loose connection I thought, but then realised that his kettle was pulling 1250W through the same socket without any problem . . . .so, must be the appliance right? So I bring it over to my house and it bakes me a nice and tasty loaf of bread without any problem . . .

Any ideas?

thanks!

Huey

 

[slup]

Exactly what does the 'fuse' look like that is tripping?

It may be an RCBO, and you might not have one - which would explain why it trips in his house, but not yours.

Alternatively, bear in mind that the kettle will be on for two or three minutes at the most, whereas the bread maker may be 'baking' for one or more hours. It could be that the continuous power draw is causing the trip.

Does it trip immediately as soon as the appliance is turned on, or does it happen after some time has elapsed??

 

[STI]

How old is the machine.You say bought recently but was it bought new ? When doing PAT tests on breadmakers i often find that the IR reading fails. After getting quite a few of these i opened one up and found that where the heating elements sit they can "bake" the conductors and ruin the insulation causing a short.

You moving the machine might just have moved the internals sufficienty to stop the short for a while but it could easily come back

 

[theflyingpig]

thanks guys . .

yes, he has I think RCBO, why would it trip this then?

it trips as soon as it is turned on - I would need to check if it uses it's element at this point in cycle - some of them do to heat the dough and other give it a knead first . . . .

the machine is brand spanking new - should he take it back?

thanks again

Huey

 

[bongos]

thanks guys . .

yes, he has I think RCBO, why would it trip this then?

Because an RCBO or RCD will measure earth leakage current. If it is this tripping then there is potentially a fault with the breadmaker. Do you have an RCD on your installation?

If you don't and he does and it is the RCD that is tripping then take it back and get a new one - it is faulty.

 

[theflyingpig]

thanks - makes sence - no RCD on mine.

one other thing though, he says when his dishwasher and washing machine are both on they trip the same RCBO . . . . . hmmmmmmm

 

[jj4091]

Can he try it in a socket on a different circuit ( bedroom for example)?

 

[flameport]

he says when his dishwasher and washing machine are both on they trip the same RCBO

This is more likely to be a fault on the circuit, rather than the appliances. Or perhaps the RCD/RBCO itself is faulty.

 

[JohnD]

pig, how do you know it is an RCBO and not an MCB or an RCD?

What rating is printed or engraved on it?

How about some pics of the Consumer Unit and cabling?

Would I be right in guessing that the kitchen has recently been refitted or rewired?

//www.diynot.com/forums/viewtopic.php?t=129539

 

[theflyingpig]

afraid I wouldn't know the difference! he has tried it on a different circuit (there are only 2 in his house) and it trips that too . . . .

I think, given it was from dixons or currys or the like, that he is going to take it back. if next one trips too, well . . . . . . .

 

[JohnD]

then I think we can assume that it isn't an RCBO (it usually isn't)

any chance of those pics?

Has the appliance got a factory-fitted moulded plug, or did someone in the house fit it?

 

[theflyingpig]

the breadmaker is still at my house - not a moulded plug, but am 100% sure it hasn't been tampered with since machine was bought.

will take pics when next over at his gaff. . . .

thanks

 

[ban-all-sheds]

no RCD on mine.

You should do something about that....

 

[securespark]

Why?

 

[ban-all-sheds]

Because RCD protection for sockets is better than no RCD protection for sockets.