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Neff Oven Not Heating Up? Here’s Why (And How to Fix)

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Neff ovens are considered some of the best on the market. They provide features and options to cook virtually any oven to perfection. Along with being versatile, these ovens are also known for their durability if they receive the proper care and maintenance. However, just like any other appliance, Neff ovens may experience problems from time to time. A common problem you may see is a Neff oven that no longer heats up as it should. 

If your Neff oven is not heating up, make sure to check the heating element, the fan, for a faulty thermostat, if power is reaching the oven, problems with the seal on the oven door, improper oven calibration, issues with the electronic control board, and the oven’s fuses. 

Keep reading to learn about all the potential reasons your Neff oven is not heating correctly. We will also discuss some troubleshooting methods you can use to fix this issue and get your oven cooking again. By knowing all the possible problems that may arise, you can quickly troubleshoot the problem and get your oven heated up once again. Now it is time to dive in and learn more about common Neff oven heating issues. 

Damage to the Heating Element 

Does your Neff oven come on but will not heat up? If so, one of the most common issues is the heating element. To know if this is the culprit, you need to inspect the element itself for any damage or burns. 

An element that is functioning correctly will appear bright red. If it is damaged, it will stay dark grey, the same color it is when cool. Most experts do not advise trying to handle this repair alone. Instead, call the professionals to ensure no additional damage occurs to your Neff oven. 

How to Fix It

  1. Locate the heating element in the oven
  2. Turn the oven on
  3. Without touching, see if the element turns bright read
  4. Monitor the temperature inside the oven
  5. Purchase the right replacement part
  6. Install (or hire someone to install) the new heating element

Here’s a video that walks you through the process:

Issues with the Fan

Neff ovens use CircoTherm technology that is not found in any other oven available today. It works by pulling air in from the oven through a powerful stainless-steel fan. It will then heat the air up and force it back into the ducts located in the oven’s rear wall. 

This process, which is possible thanks to the fan, means the oven heats up faster and more evenly than with a traditional oven. This helps you save time and energy since minimal preheating is needed. 

If the fan is not working correctly, it means there is an issue. It could be a short in the oven or a problem with the fan itself. 

How to Fix It

  1. Locate the fan
  2. Inspect electrical connections
  3. Ensure there is power coming to the oven to turn the fan on
  4. Replace the fan, if needed

Faulty Thermostat 

If the issue is the thermostat, the fan will still turn on; however, there will be no heat. The purpose of the safety thermostat is to ensure your oven does not overheat. If the temperature gets too high, it will turn the oven off automatically. 

If the thermostat is faulty, it will not allow the oven to heat at all. At this point, a new thermostat should be installed. 

How to Fix It

  1. Locate the thermostat
  2. Purchase a new thermostat for the make and model of your Neff oven
  3. Remove the screws holding it in place
  4. Replace with the new thermostat
  5. Test the oven to ensure it heats up again

No Power Going to the Oven

While it may seem like an obvious issue, there are times you may not notice there is no power going to your oven. When this happens, the oven will not turn on or heat up. It is a good idea to check the power at the plug and the main panel for the house where it is being used. 

How to Fix It

  1. Check to see if the oven is plugged in
  2. Use a voltage meter to see if there is an electrical current being fed to the plug
  3. Check if the circuit is tripped for the outlet the oven is plugged into
  4. Call an electrician if the power is still not turned on

Faulty Seal on the Oven Door 

On the door of the oven, you will find a rubber seal on the inside. This keeps heat in while foods are cooking. Over time, the rubber may become dry and cracked, resulting in the heat not staying in the oven, resulting in the temperature falling significantly. In fact, the oven may never fully reach the desired temperature because of a faulty door seal. 

How to Fix It

  1. Inspect the door seal carefully for cracks, missing pieces, or dryness (all these issues can cause heat to escape your oven)
  2. Remove the old rubber seal
  3. Replace it with an oven-safe adhesive 

    Important Note: When replacing the rubber seal, make sure to avoid using the oven until the adhesive has fully cured. 

    Improper Oven Calibration 

    If your Neff oven is not heating properly and you have checked the heating element and temperature sensor, along with the other factors on the above list, the problem may be calibration. 

    Proper oven calibration is essential to cook your food correctly. Ovens that are not accurately calibrated may consistently under- or overcook your food. 

    How to Fix It

    1. Test the accuracy with an oven thermometer 
    2. Preheat the oven to 350 F (176.67 C) 
    3. Take temperature readings after 20 minutes and every 20 minutes for two hours
    4. Divide the sum of all temperature readings by how many you took and see how close the average is to 350
    5. This information will let you know how to adjust the temperature dial in your oven

    Issues with the Electronic Control Board

    If you have a newer Neff oven, it may have a unit that is controlled with an electronic control board. This is essentially the “brain” of your appliance. It controls all the main cooking functions, including baking, broiling, and more. 

    If the power does not flow to the circuits that power the elements, the output relay must be checked. 

    How to Fix It

    1. Locate the control panel
    2. Check the voltage output using a voltage meter
    3. Call an electrician if this is the issue (to avoid an electric shock)

    Issues with the Fuses 

    If your Neff oven has internal fuses, a fuse may blow if there are problems with the system’s wiring or some of the other components.

    How to Fix It

    1. Unplug your oven 
    2. Find if any fuses are blown (usually, the fuses are labeled, allowing you to find the fuse easily)
    3. Do not change the fuse unless the underlying issue is known
    4. Change the fuse using one with the same rating as the original 

    Final Thoughts 

    In this article, you found a detailed list of all the potential reasons your Neff Oven may not be heating up. Make sure you check for any potential issues and make the needed repairs. There is no reason to attempt to repair something there is no issue with, which is why you should be sure about the problem before moving forward. Make sure you purchase the right replacement part for the make and model of the Neff oven you are using. 

    By using the troubleshooting tips here, you can get your Neff oven heating up properly again.