When you open the freezer doors, hot and humid air from the outside interacts with the cold air inside the fridge. This causes the water vapor in the warmer air to condense and then freeze to the interior walls of the freezer compartment. Frost build-up inside the freezer will mean it takes longer to freeze things and decreases its performance.
If your freezer doesn't have a no-frost feature, you will need to defrost it manually. Do this approximately once a month or when the frost build-up reaches a thickness of 0.5 centimetres.
Follow these suggestions to reduce the amount of frost build-up in your freezer.
Avoid opening the freezer door too frequently or keeping it open for long periods
Frost builds up primarily due to the interaction from letting warm air into the fridge freezer. To avoid this, try not to open the door too often, or leave it open for too long.
Check for gaps, cracks, or tears on the door seals
The cold air inside your appliance needs to be properly isolated from the outside. Check to see if there are gaps between the door seal and the cabinet. If you find any, adjust the door seal by gently pulling away from the door using your fingers. For any openings that persist, you may need to replace the seal. In that case, contact an authorised service agent.
Keep the freezer sufficiently loaded
Store half a kilogram of food for every cubic meter of freezer space. In other words, keep about 3/4 of your freezer full. Ideally, your freezer should be full but not overloaded.
Avoid placing hot food inside the appliance
Wait for the food to cool down before putting it into the appliance. The moisture released from hot food may result in more frost build-up.
Check the temperature setting
Frost build-up might increase if the freezer is warmer or colder than it needs to be. The recommended freezer temperature is around -18 °C. Check the setting and adjust it if needed.
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