Question about Neff U1421 Double circotherm Electric Oven

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I have a 4 year old Neff 1624x0 oven, when I have the temp setting on circotherm the oven keeps resetting temp back to 160 degrees...

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  • rolfeaj Aug 25, 2010

    Do you have another link, as this one is not being recognised by Google. Thanks



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Neff Cooker manual, Neff instruction manual for ovens
Here is a link for you to download a PDF instructional manual for your Neff cooker or Neff oven.
how to use this service
1 click on Link,
2 on the left hand side click manufacturer (Neff)
3 then click on service
4 then click on service and select instruction manuals
5 enter your model number and download the PDF file .

I think you will find that it is your Thermistor, or Thermostat that has faulted, this is usually what it is... Sometimes it is the main controller that has been spiked.
You will in any event have to troubleshoot via your service manual

Posted on Aug 24, 2010


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Oven temperature on Neff 195305317 circotherm oven

hi remember that electric can kill you even if it is unplugged, if you don't know what components are likely to hold charge or have large inductance get someone else to fix it.

you need to get the service manual as tis will have fault finding charts, part numbers, location of sensors etc. If you can't get manual then:
Not likely to be temp limiter as this cuts out if temp is too hot. Find temp probe, may be ntc, mercury vapour switch etc. take probe out disconnect leads and measure resistance, heat, or cool, probe measure resistance if not significantly different (ie 10k to 100k or 100k to 300k) then probe is shot. Take probe to spares place, get replacement and refit. Be very careful to refit leads exactly as they came out, don't want insulation to melt and oven to become live. test with oven or meat thermometer as new sensor may need calibration. Should be accurate to within 10C or so

hope this helps

Nov 10, 2012 | Neff Ovens

1 Answer

Neff circo therm need to replace cooling fan

Isolate mains.Remove oven cavity back panel (4/6 phillips or 4/6 Torx 20 screws)Remove fan blade (reverse thread nut)....this is sometimes where you come unstuck, because the blade just won't budge.If that happens I normally then remove the back panel of the unit itself (doesn't need to come all the way off, I will usually leave the mains connections on and let it fall back as far as it will go safely...may have to loosen the cable clamp to get some slack on the mains)You will now see the other side if the fan motor.Remove the L and N (not pole sensitive so they can go on the new one either way).Remove the 3 Torx20 screws holding the fan in position. (some models have an extra spacer ring so be careful you don't lose them)Go back to the cavity and use something to give the motor shaft a whack to release the fan blade, bearing in mind that if it does budge the motor itself is going to fall out the back (stick an old towel etc to cushion the fall and protect the terminal block etc).The new fan usually comes with the blade attached, separate the parts, install the motor, attached electrical connection and then the fan blade, make sure its tight. At this point I would close up the back and just hold in place with one screw and test that the fan works. (don't forget that the oven will not operate when the clock is flashing, so set any time on the clock before selecting circotherm)If everything looks ok, get it back together and in housing and run upto 150 or 200 degrees as a last test.Good luck, let me know how you get on or if you need any further clarification. Please post the outcome as this will assist other users of the site looking for solutions to similar problems.All the Best.

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1 Answer

What is rhe best temperature for cooking bread in the Neff 1451 oven?

On circotherm at around 210 in a preheated oven for first ten minute, then drop to 190 until finished. For a 2-2.5lb loaf that would be 10mins followed by 20-30mins depending how dark you want it. On the neff ovens down the left side the shelfs are numbered 4 at the top down to 1 at the bottom... you should use the shelf set on 1 or 3 (**NEVER IN POSITION 2**). Good Luck. Hope this you can prove the bread in the oven by setting the selector to 'fan' but with no temp, the heat from the lamp will create enough heat (obviously the bulb/lamp need to be working!!)

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1 Answer

Neff Circotherm Double Oven keeps blowing elemrnts. Ie. only works a few times then only gets warm

I assume that you are fitting genuine elements, as opposed to cheap copy ones..
Make sure the fan is working o/k as well.
You also need to check the temp is correct, for this you need to have a oven thermometer to check it with.
Make sure the connections to the element are o/k as well.
Hope this helps with your problem.

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1 Answer

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Is it flashing AUTO, If it is and you can'y reset it back to manual, then you have faulty timer.
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probably the element. to save wasting money, check continuity with a multimeter

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Press the fourth button from the left (that looks like a tick) then turnthe knob to the right of it to set time as required

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fan heating heating element gone replace it ;Ire close bye

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