NEF U1721 double oven

[vidmarc]

Just the main oven at the bottom was on at the time, and had just a few minutes cooking time left on some croissants. The fusebox feeds only the oven and the hob, and the hob wasn’t on at the time. I just looked at the fusebox switch for the cooker circuit that was tripped and it’s named B40 at the top of the switch (ON) and NSB40 at the bottom (OFF).

Not sure what an RCD is?

I’ve now replaced the main element three times over the past few years. The main oven usually just stops working when it fails, but this is the first time it has tripped the main cooker fuse. There was a bit of smoke when I opened the oven door, not sure if it was due to oven grime or something short-circuiting.

[vidmarc]

ps – I have a new element arriving tomorrow – will I be OK replacing it and switching the oven back on?

[electrofix]

vidmarc wrote:ps – I have a new element arriving tomorrow – will I be OK replacing it and switching the oven back on?

hopefully yes

if you can see some damage on the element coming out then you know its definitely the fault

when you turn on if it works set the stat very low 50 to 100 and wait vto see if the light goes out. Reason is when you blow big fuses you can sometimes weld the stat and it will get way too hot. So you need to test it to be certain

dave

[vidmarc]

Element now replaced. So it was the elementy that blew – in two places, eather side of the element near to where it goes into the back of the oven. Any ideas why the element blew? I only installed it back in October 2024. This is I think the third time I’ve replaced it.

[electrofix]

because it want to blow is all i can say

was it a genuine element or a copy part ?

Dave

[vidmarc]

The first replacement was a genuine element (which lasted around two years), the second and third are I believe cheaper alternatives.

[electrofix]

have given up on copy elements unless i know who manufactures them . like if its IRCA theres a good chance of quality

remember fitting a copy element to a bosch cooker some years ago only for it to go pop before i left the customers house which was some way from base. years ago copy elements where from a trusted manufacturer now its mostly chinese built for maximum profit

is this the half moon element as thats the one that went bang on me and that element always seem to fail quickly

Dave

[vidmarc]

The last element is from spares4home on eBay. (Item number

: 176199025952)

[electrofix]

well thats one of the cheap ones
from a professional point of veiw would never fit one as i have to guarentee the job. They are also difficult to fit as you have to access the bolt behind the fan

your element cost £11.95 but there are a few suppliers offering the IRCA element for about £21

as an idea of how cheap your element is I can buy that one in for £3.31 plus vat

also always check the fan motor is free to turn as if it slows down the element overheats and blows

Dave

[vidmarc]

If it blows again (I’m sure it will) I’ll go for a genuine element, if I can find one.

[electrofix]

never a problem

you can go direct to Bosch part no 494643

https://www.bosch-home.co.uk/en/product/00494643

Dave

[vidmarc]

Wow, that is a lot of money. Does it come with a guarantee?

[electrofix]

possibly seeing as your a retail customer you may get some sort of guarentee but how do neff know if its the element thats at fault or the fan has failed causing the element to blow

I will only fit gen to those units and i always give a 6 month warranty and never had a failure

you could try the IRCA ones as they should be better than the cheap ones

but what you have to take into account is every time it goes you have to set to, order and change it. you have to hope it does not do anymore damage when it goes. so if a good one last a lot longer then you have less chance of other problems

Dave

[vidmarc]

OK, element has blown again, must be the fourth or fifth time. They seem to last around 4-5 months. I’ve just ordered another, this time from the UK White Goods store. Could there be an underlying problem that is causing the elements to keep failing? I noticed there was an 1800 watt option so I went for that, could it be that previous elements I used were only 1700 watt?

[electrofix]

these semi circular elements always seemed to fail more often

important thing is the fan as anything that slows the fan will over heat element

lastly is element quality I only fit Genuine or at a push Irca made elements

remember fitting a pattern element and watch it blow in 10 minutes. have never fitted one since

Dave

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