20 Most Recent Neff U1721 Double circotherm Electric Oven Questions & Answers

Hi there,

I'm figuring you've probably resolved this, since you posted in November (and I've just joined the site today). However, I thought I'd post a solution just in case anyone else surfs in and finds the same problem.

We have the same sort of oven. After the power has been off, the oven won't work until you set the time on the clock. I think it's because of all the automatic timer features.
On ours, you have to press the two buttons with arrows on at the same time as turning the clock dial to change the time.

Good luck.

Neff U1721... | Answered on Aug 10, 2018

More likely the heater element.. I hope this helps...

Neff U1721... | Answered on Feb 21, 2018

There could be a fault in the lower oven , or it could be overloading the circuit. add the watts of the two elements and divide by line voltage, this will give amps , now check the fuse rating amps , it must be higher than the oven. If that checks out ok the fault is in the oven.

Neff U1721... | Answered on Jan 03, 2018

If you are sure there is 220v going to unit, it most likely is element or click / control. If you have a ohms meter, you can test the element

Neff U1721... | Answered on Sep 07, 2017

I think there is an inline fuse for each oven/element.

Neff U1721... | Answered on May 04, 2017

are they automatic on and off . if so the switch is defective .

Neff U1721... | Answered on Feb 14, 2016

it sounds to me that the fan is not working properly. as the oven gets older the fans become weaker and then doesn't blow air over the element at a rate that can the temp down enough..

Richard Saupe
Oven Specialist

Neff U1721... | Answered on Apr 06, 2015

See if the toc is open circuit , it is situated just above the heater connectors at the rear .

Neff U1721... | Answered on Mar 06, 2015

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