How To FIX. NEFF Warming Drawer,RED FLASHING LIGHT My Repair of their POWER CONTROL MODULES

Hi Have the same problem - can you share where you got the capacitor from as struggling to find the right one with the right capacitance (new to these so not sure if 1 or 1000pf)

Hi Brian, Just a quick note of thanks for your video 👍 Over here in Australia I have a V Zug warming draw worth about 3k that would not heat up, this was solved by replacing the capacitor as the V Zug control board is identical to your Neff unit. Replaced it with one I got from eBay and problem solved and the wife is stoked. Appreciate the video and all the best from Oz mate 👍👍👍

Hi Brian, thank you for your helpful video. Upon checking the capacitor whilst still mounted on the printed circuit board of my NEFF I found that it initially gave an Ohm-meter reading which climbed quickly from 45 to 60 MΩ and then went OL. How does this fit with your experience? Has the capacitor failed? I'd appreciate any insight you may have.

Sorry for newbie question, I’ve got this fault and tested the bonded element in the drawer by checking for continuity and didn’t get any. So I assumed it’s faulty. Is this the correct way to test the drawer element? Thank you.

I was so glad to come across this video. Well done for taking the trouble to produce something so well laid out and detailed. We have a Siemens badged warming drawer that is identical and despite being lightly used and only 3 years old has developed exactly the same symptoms .
Armed with the desoldering iron and capacitor I removed the board only to find that the blighters have changed it and that the 1uf capacitor is no longer there. Perhaps they watched your video! I do however see a couple of 4.7uf electrolytics that are still only rated at 85 degC so perhaps their penny pinching ways are continuing. As they are very cheap I guess I might as well try swapping them and hoping for the best. As the drawer element seems to be intact and the connector at the back is OK This is it's last chance as I certainly would never waste 350 € on buying another with these faults!

Fantastic video very easy to follow. Ordered capacitor as my fault was as you described. Fitted new capacitor and wow now working perfectly again saving me nearly £200 or £400 if I bought a new one. Thankyou

Hi there, just in case you still read comments on this, I had the exact same issue originally and we stopped using it. Found this as I’m determined to try repair before replacing. However, in the time we’ve not used it, I don’t get the power light at all now. I notice tapping the relays got the light to momentarily flash on. Are the relays known issues at all too? I’m assuming I need to change this component too as I had the same original symptoms, but the progression to no light at all be related to the two PB114012 units?

Hi Brian great video I have searched e/bay and come up with this number B32923 X2 MKP/SH with the same voltage you recommended is that compatible.

Here's myCapacitor from a guy in Bristol. Epcos make, 32924C3105M Epcos Capacitor, Class X2, 1Uf, 305Vac.Cheers Brian.£3.99 delivered .

Hello Brian, a big thank you from another happy person here. Your suggested fix worked a treat. Warming drawer fixed at working ready for its Christmas duties! Thanks

Many thanks ,I'm so pleased and thanks for letting me know.Cheers Brisn

Hi there Brian, an excellent video, thank you for taking the time to produce. I changed the capacitor exactly as you stated and with an uprated one too but unfortunately the fault still exists. The red light stays on for about 20secs then flashes and the warming drawer does not get warm. Do you have any idea what else may be the problem and what I could check please? Thank you. Richard

Many thanks Richard .Yes the desolder iron is a must with multi layer plated through hole pcb's.

Hi Brian, thanks for the very comprehensive video and explanation of the possible fault with the warming drawer. The problem I am having is sourcing the correct replacement capacitor . Mine is a Bosch warming drawer and the capacitor is a Vishay 100nK 310v~x2, 339 MKP and a code of F1028. There is a B32922C3104M Epcos Capacitor, Class X2, 0.10Uf, 305Vac on pcarena-bristol site however this is rated at +/- 20% so I'm unsure if suitable. Could you advice if there is a better option available . many thanks Trev.

Hi Trevor.,I think your model being the later design of the module would not be the 0.1uf.Have you measured the capacitor value?. If it has lost its value then go for it and replace it.The tolerance of +/- 20% could be a problem but only if its lower in value.I hope this helps .Cheers Brian.

Brilliant video, I was able to fix our Neff warning draw with exactly the same capacitor that you recommended. I had to buy a pack of 10 from Radio Spares but it was fixed for less than £8.
Thanks again

Brilliant .You can setup shop now and use the spare capacitors.I have an account with RS but we're out of Stock when I ordered .Many thanks for letting me know.Just in time for Christmas.

Great solution I even managed to replace the capacitor myself and so far problem of flashing light on setting 4 has been solved ... £3.99 repair.

Thanks Brian. Symptom and resolution applied to our Bosch HSC140652B/10 now back in working order in time for Christmas.

Many thanks for your feedback Colin and splendid for Christmas.Cheers Brian

Hi Brian, great video, very helpful and well explained, I agree with your comments about capacitors in this elevated temperature environment. Keep up the good work.

Hi great video thanks. can you let me know where you purchased this capacitor from as they seem to come in different sizes, and I’m struggling to find. A good source .

Many thanks I hope so .Be very careful when removing the old capacitor because the leads of the capacitor are soldered through the multi layered printed circuit board and you should use a vacuum de-soldering iron or wick braid. .Cheers Brian

Brilliant. Saved £160. It was the capacitor 1uF down to 0.26uF. Would be good to know where to source it but I found one that would do!

Hi, I've just come across your video after searching for possible solutions to my failed NEFF warming drawer. Mine isn't heating at all, and the fan/element are not operating. The red light stays on for a few seconds then blinks. I've changed the power connector at the rear already, so I know it's not a faulty connection. My board looks different to yours, and the capacitor has 100n K 310v X2 339 MKP L2147 stamped on the side. I'm not sure what I'm searching for in a replacement, so any advice would be gratefully received.

Hi Brian , could I ask a question as I ordered a new one from a guy in Bristol but the only part number I could find on eBay was B32924C3105M
It was slightly different number to yours . ( B32922C3105M)
It came but the numbers 40/110/56/B
Where 40/105/56/B instead everything else was identical to yours .
My question is would the 105 make any difference than the 110 , as the guy selling from Bristol did not know what the numbers mentioned ment . Thanks for your help with this

Thanks Brian sorry to be thick but when you say lead pitch is that the distance of the silver prongs that go through board. The size is identical but it’s just it has 105 instead of 110 on the side .
I have put in and soldered up but I still get a flashing light when re assembled , I’m guessing it does not matter which way round the capacitor goes . I’m just clutching at straws or maybe it’s another fault with mine

The 105 usually relates to working temperature 105c ,the original is only 85 c . Did you manage to check the capacitance of the one you replaced .?

Ok thanks

Hello Brian. A big thank from me. What a brilliant and informative video. The capacitor arrived this morning and I replaced the old one. Hey presto! The warming drawer now works again. You're an absolute star! Alun

Dear Lord Dos,I'm so pleased you have repaired the module,well done and a lot of money saved ..Many thanks for you comments.Cheers Brian

Brian, Many thanks for this video. One of our Siemens drawers broke 18 months ago and I was unable to find a fix on the internet, your video showed me where the board was and able to remove in minutes by leaving the drawers in place enabling me to quickly swap boards and confirm one board was faulty. Ordered the part from your link and both drawers now fully working saving over £200 if I ordered a new board from Siemens.

Hi Brian, thanks a lot for your help. I managed to repair a Siemens drawer. You made my day.

Hi George, I'm glad to hear you have repaired the module. Cheers Brian

Worked a treat. £1.20 (+£3.50 postage) for the capacitor. Got a friend to solder it.

Many thanks,well done.😅

Hi Brian. I do have a BOSCH warming drawer which I assume is the same manufacture. However the capacitor is labeled 100n K, so this would be 0.1yF. Also the design of the electronic board is a litte different (especially the switch). I will replace the capacitor as you did but using the 0.1 yF and see if that works. Thanks for your video.

Just want to thank you for your detailed instructional video. Our NEFF Warmer oven failed last weekend. I followed your instructions and replaced the Capacitor. Replacement Control Panel from NEFF in Australia is $382.47. That is without call out fee and labour charges. New capacitor from Jaycar was $4.25 (Got the 310 Volt). All reassembled and working fine. Thanks again.

Hi Brian. Great video and excellent explanations. I have a Siemens drawer with the same motherboard. I have replaced the same capacitor that you did but I am still getting the flashing blue light and wondered what you would suggest as a next step? Thanks.

That's quite rare to have the element bonded to the draw glass base go open circuit.Just check the resistance of the element at the point where it is bonded and where the two brown wires are terminated, just to make sure the two crimped spade connectors are sound .If it's o/c at the element to wire ends then the element is definitely open circuit.(o/c).I hope this helps.Cheers Brian

Hi Brian, thank you for your brilliant video. I am not confident with soldering etc so I will replace the entire circuit board. How do I isolate the drawer from mains voltage? I don't see a isolation switch anywhere...

Hi Davinda, You will find a IEC three pin plug at the rear eight hand side looking from the front ,and that plug lead if you follow it ,will go to a 240 volt 13 amp mains socket somewhere in your kitchen cabinet housings .If you can't trace it just pull the plug out of the socket of the warming draw. But it's best to switch off where the IEC 3Pin connects to the 13 amp socket.I hope this helps.,Cheers Brian

Hey Brian, thanks for the video. I had the same issue, but when changing the capacitor I broke one of the smd resistors, the one next to the power connector. It's hard to read the marked value of it because of the damage, could you help me with this please and where to get one of those to replace it. Should I get another smd, or will this be difficult to solder onto the board? Thanks!

Big thank you Brian. I have very little experience with electrics or circuit boards but I followed your guidance and for less than £15 fixed a problem I had been quoted nearly £300 to resolve.

Hi Brian, An excellent video. Could I ask a question regarding a multimeter reading? Our Neff drawer stopped working and I removed the circuit board. When I touch the contacts of the capacitor (in situ) the reading shows open circuit 0.L. It actually first showed values quickly changing and then after a second or two showed 0.L. I'm assuming there is a problem but not sure if it is just likely to be the capacitor as, wouldn't there be some reading from the rest of the motherboard? Cheers Simon