Mine failed after 3 years and was going to cost probably around £150+ to repair by Neff (£99 labour/call out plus parts on top). A defective thermostat can also cause a lack of heat and this can be easily changed by a professional. Neff Built in bouble oven U1410W0GB/05 Oven is not regulating temp. When you set a temperature on the oven, you should hear clicks followed by the sound of gas igniting. The problem which may have been a problem before of which I was not aware is that when the oven switch is set at 180c the oven temperature checked with an oven thermometer is at 190C. Load of rubbish! I have a Neff electric oven B1691N0GB/01. When trying to set the oven temperature the displayed numbers are unstable and jump around, making setting the temperature or timer difficult. The model is Neff N17HH11NOB (140mm high) and the larger N17HH20NOB (290mm high). The oven does seems to heat up on just normal setting without the fan. Does the oven have a fuse which may have caused this. Unsafe handling can lead to injury and death. They are surprisingly useful and work well (for a time). If so, the problem may be that your oven isn't getting hot enough. I got a Neff oven a few years ago. Do you know whi … read more The light works like this: When you turn on your oven, the light will come on to show the oven is heating. Warning: Follow standard safety precautions when working with electrical components. We have a problem with our Neff double oven U1661N1GB/09 When you select fan on the main oven, the lights come on, the fan starts, but the oven does not come up to temperature. I have now fitted a new one and a new fan also and the oven is working. Neff oven problems can include faulty elements which result in the oven not reaching the required temperature – and the oven light stays on all of the time. It was working fine before the power cut. Many thanks my Neff is about 10 years old but works great until now. Other than a blackened or massively undercooked pot roast, of course. When it was at 160C the oven temperature registered 150C. We had a power cut which seemed to trigger this off. All other functions are working fine including the conventional oven. I just use regular fan oven temperatures, sometimes even 5 degrees higher. The Fix. Already replaced element, door hinges as door was not closing properly and thermostat. Neff sell a warming drawer to match their hide and slide oven range. It is 4 years old. Your oven's temperature indicator light is usually one of the first signs that something might be up. Once the temperature you set has been reached, the light should go out. If these steps don’t work, then you may have a problem with the electrical connections inside the oven, and after ruling out cost-effective solutions that you can DIY, you’ll be knowledgeable when hiring an expert to assist you in diagnosing your oven’s failure. It's fine once you get used to it. The top oven does not heat up either. I have a Neff double circotherm oven model U1524. Temperature is still too low. It claims for example that a normal oven temperature of 200 degrees would be 180 in a fan oven but only needs to be 170 degrees in a CircoTherm oven. Just because you're turning the knob to 200°C, doesn't mean that the oven is actually reaching that temperature.