Automatic Defrost Fridge Problems

Force defrost fan hitting iced over coils making noice when fridge door closed.

Automatic defrost fridge problems.

When the compressor runs the evaporator coils become very cold way below freezing. Refrigerator defrost problem is difficult to fix and most of the time require a refrigerator repair expert to identify the root of the problem. In any frost free refrigerator there is a defrost system which controls the cooling and defrost cycle. The refrigerator automatic defrost system periodically melts frost from the evaporator to improve heat exchange.

Following are 3 reasons behind refrigerator defrost problem 1. In this video from sears partsdirect we ll help you troubleshoot why your refrigerator s automatic defrost system isn t cooling including checking the electronic control board defrost heater thermistor and bi metal thermostat. During defrosting the compressor stops the defrost heating element turns on and frost melts from the evaporator fins. Fridge defrosting is usually automatic and is a benefit to most people.

The defrosting process requires a complete shutdown of your fridge s cooling system and the activation of a heating coil. If your refrigerator has a defrost problem this page will help. To put it simply the refrigerator has the functionality to periodically run warmer temperature cycles so that any build up ice can be melted. Also known as a frost free or auto defrost it s something many consumers love for ease of cleaning and saving time and labor.

A combined refrigerator freezer which applies self defrosting to the refrigerator compartment only is usually called partial frost free or semi automatic defrost some brands call these auto defrost while frigidaire referred to their semi automatic models as cycla matic kelvinator often named these models as cyclic defrost. Automatic defrost or the auto defrost is a feature of the refrigerator that prevents the ice from building up in the system by performing an automatic evaporation process. Pull your refrigerator out from the wall and locate the defrost drain hose in the bottom back service panel. Refrigerator defrost problem diagnostics.

Once you ve pinpointed the problem we ll show you how to fix it and get your refrigerator cooling again. This cycling is necessary periodically to melt away excess frost that has built up in the freezer compartment. This hose should have a rubber check valve which helps regulate humidity and is known.