Auto Defrost Freezer Frosting Up

At regular intervals the defrost heater comes on and heats up the area around the cooling coil in the freezer where frost forms.

Auto defrost freezer frosting up.

When the coils are covered by too much frost and ice airflow is restricted and the freezer won t efficiently cool food. To check the flap open the left side door and look at the black flap inside the ice chute. The timer signals the heater to turn on at regular intervals for efficient operation. In most frost free freezers a defrost heater will be there which mainly helps in melting the excess frost before it starts to build up.

A manual defrost freezer does not contain any automatic heating elements to prevent the build up of frost or ice. If the freezer temperature is set below 0 o f you may need to increase your temperature for at least 24 hours. A failed defrost timer or a bad electronic control board may not initiate the automatic defrost cycle causing. When the defrost sensor detects frost beginning to build on the evaporator coils it temporarily causes the coils to heat up which melts away frost or ice.

In frost free freezer models a defrost heater is used to melt frost before it can build up on the evaporator coil. Depending on the appliance this could be either a defective heater bimetal defrost sensor defrost timer or control board. If the flap on the ice dispenser is not closing properly it allows warm air to enter the freezer compartment and causes frost build up in the freezer. But you can get a build up of ice if you leave the door open for too long or if you overload the fridge.

In this guide we ll take you through some steps to avoid these issues and get. If the freezer s temperature is set too low previous frost buildup may not able to fully melt during the automatic defrost cycle. If the flap is in the correct position it is flush against the housing. Once the coils are clear the freezer.

Instead they use fans to blow cold air around and get rid of any ice. It requires the owner to manually defrost the freezer coils as frost builds up. Frost free fridge freezers are great because you don t need to manually defrost them. Frost building up solely on the back of the freezer section where the evaporator coil is located indicates an issue with the defrost cycle.

If you are noticing the build up of frost in the freezer then it can be due to the faulty defrost time. If frost is building up in the freezer check first for a break in the door gasket that could be letting in warm moist air.