The refrigerator is the most commonly used home appliance in our kitchen. It keeps the food fresh for a long time by cooling them. If the freezer doesn’t work properly then it would affect a lot.
So here I would like to discuss how to diagnose a fault in a frost-free freezer or fridge freezer.
Now generally discuss most faults in fridges and freezers are very simple to diagnose and actually just involve replacing the faulty parts like the door seal or the lamp. Now they actually develop frost but you can't see that because it's concealed behind the cover in the back.
To give you a better idea of what's going on I am going to discuss briefly. Firstly remove the shelves and icebox as well as the back cover so we can see the compartments inside. Here in the back, we have an evaporator, now this is essentially a radiator that is cooled by liquefied gas being pumped through it from a compressor.
The fan at the top draws air into the appliance and then blows air across the evaporator because the evaporator is cool. It cools the evaporator the temperature and that air is then distributed around the cavity by the fan freezing anything. In some of the refrigerator model, some of the air is also ducted into the fridge compartment and the flow of that cool air is controlled by a motorized flap and it goes in through duct up at the top then travels down through the fridge and returns through this duct at the bottom.
Now when you opened the freezer door the cool air inside falls out and it's replaced by the warm moist air in the room. The moisture from the air settles on the cool evaporator where it cools so much that it turns to frost. Over time a build-up of that frost is going to affect the airflow. So for that reason, there is an element fitted underneath, the evaporator which turns on round, about every 16 hours of the motor running and for a little while heats of the frost up so that it can melt and drain away through the hole in the bottom and out to the back.
Now the most common faults that occur in a frost-free appliance are the build-up of ice on the evaporator.
If you have any other issues with your refrigerator then consult the Refrigerator Repair Service center.