Freezer ices despite NoFrost: possible causes + help
NoFrost is a standard for modern freezers and chests that you can purchase commercially. The function protects against icing and ensures that even on particularly warm days, the interior of the device does not warm up too quickly and cools down again. However, the problem may occur that, despite the function of the freezer ices, for which there may be many causes.
With NoFrost, the manufacturers of numerous devices offer a function that prevents you from annoying defrosting. Freezers without the recirculation function are constantly freezing and have to be defrosted at least once a year so that electricity costs do not rise to infinity. The function regulates the humidity inside the freezer and keeps it low, so that no excessive moisture can form, which prevents your device from forming ice. If your freezer ices up even with this feature, there is clearly a problem. There are many causes of this error that you can take with the appropriate measures and thus protect your freezer icing.
Causes and help
If a NoFrost freezer ices up, there can be several reasons for this. Because the devices have many components that can be damaged over the period of use, you may need to replace them or have them replaced by a specialist. But there are also causes that can be resolved within a few seconds. An example of this is the wrong temperature setting of the function, which can quickly lead to icing. The following points will tell you exactly what are possible reasons for icing and how to fix them.
Believe it or not, the site can completely disable the NoFrost feature. For example, if the device is standing in the blazing sun for several hours a day, the door of the freezer heats up so much that the function no longer succeeds in lowering the humidity. The following locations are also unsuitable as they may cause an uneven temperature in the immediate vicinity of the freezer.
- next to a heater
- right next to the oven
- next to a fireplace
- right on the wall
While locations such as the oven and the heater provide a permanent heat load, the location is also unsuitable without being far from the wall. Because the grilles for the ventilation and the heat exchanger are located at the back, they need some space to release the heated air. If this accumulates, the heat load is again too high and the freezer ices despite the function. Therefore, find a location that is not in the immediate vicinity of heat sources and allow the freezer space to the wall.
Maybe you have set your temperature too high over the thermometer ">
Tip: It is also recommended to store frozen food at -15 ° C, but -16 ° C are better. The reason for this is the constant heat exchange by opening and closing the freezer compartment door.
Frequent and long opening
If you often need your freezer, you can also heat up too much. Another problem is a longer opening the freezer, as this significantly raises the temperature and brings the humidity inside out of control. Therefore pay more attention to how often and how long you open the door during the day. Always close the door properly, because even a small gap can lead to icing. Modern devices attract attention with an alarm on a too long open door, which protects against icing.
Tip: Be sure to check your door seal for small parts or leftovers. These could pinch there and create a small gap, over which always warm air enters the freezer.
Warm, let alone hot, food does not belong in the freezer. If you have leftovers left over, allow them to cool completely before they are frozen. The steam of warm food leads within a short time to a high humidity, which even by the NoFrost function can not be regulated. In the long run, this will cause your freezer to iced up. If you always put your still warm leftovers in the freezer, you should refrain from doing so.
Broken rubber seal
Check your door seal. Since these are made on rubber, there is a possibility of breakage of the seal. As this means that the door can no longer be completely sealed, there is an imbalance in the temperature and humidity inside the unit. The following methods will tell you if the door seal is broken.
1. Pull off the gasket with your finger. If they find cracks or even broken pieces, they are damaged.
2. Turn on a flashlight and place it with the light beam towards the door. Now close the door. If light comes out, it is damaged.
3. Take a sheet of DIN A5 paper and open the door. Insert the sheet of paper into the door gap and close the door. If the sheet is difficult or impossible to pull out, the seal is OK. However, if it is easy to remove, you will need to replace the gasket.
If any of these are the case, you should obtain the proper seal for your model and replace it according to the manufacturer's instructions.
The freezer also ices up if important components are broken, which either control the NoFrost function or take on another important task in the freezer. The main ones are the following.
- control board
While a defective thermostat is easy to replace, it looks quite different with a compressor. In itself, all these components are difficult to replace and depending on the age and condition of the device, it may be more profitable to buy a new freezer right away. If you have not been able to confirm any of the other causes listed above as cause, you should call an electrician to inspect the device. The NoFrost technology relies on modern technology that requires an experienced eye, so a specialist is recommended.
Tip: Instead of the thermostat, only the safety temperature limiter may be damaged. However, this can only be determined by the use of a power meter or the check by a specialist.