How A Refrigerator Freezer Works

When all of the ice is gone the temperature sensor senses the temperature rising above 32 degrees f 0 degrees c and turns off the heater.

How a refrigerator freezer works. To determine if the evaporator fan motor is defective try turning the fan blade by hand. A typical domestic refrigerator or fridge keeps food at a temperature roughly 0 5 c 32 41 f. When the fridge is not cold but the freezer is the problem is probably tied to one of your refrigerator s mechanisms not working as designed. Most units have both a refrigerator and freezer compartment but the cooling actually occurs in the freezer and a fan circulates the cool air into the refrigerator compartment.

If the evaporator fan is not working the freezer or refrigerator will not cool adequately. Now in liquid form at high pressure the refrigerant cools down as it flows into the coils inside the freezer and the fridge. The next time you indulge in an ice cold drink on a hot day you have your refrigerator and onboard freezer to thank for the refreshingly chilled beverage it wasn t so long ago that you d have to be very rich or well connected to score a chilled drink with a few ice cubes floating inside. One of the main reasons for fridge not cooling but freezer works is that the evaporator coils are not working in proper order.

Whether the unit is a small household appliance or a large commercial walk in area the cooling system works on the same basic principle of a deep freezer. It goes through this topic to make sure you have the facts you need to fix this problem when it happens to you. Since both the freezer and fridge work off the same cooling unit both should work fine. Every six hours or so the timer turns on the heating coil.

Let s take a closer look at how a refrigerator works. The heater melts the ice off the coils. The heating coil is wrapped among the freezer coils. Last the refrigerant evaporates to a gas then flows back to the compressor where the cycle starts all over.

A small fan and motor are mounted near the evaporator helping draw air over. Fridge not cooling but freezer works 1. The refrigerant absorbs the heat inside the fridge cooling down the air. Today we take refrigeration for granted but once upon a time fortunes were made shipping large blocks.

Freezers work in a similar way but cool down to a much lower temperature typically 18 to 23 c 0 to 10 f. Heating the coils every six hours takes energy and it also cycles the food in the freezer through. The evaporator fan motor draws cold air over the evaporator coils and circulates it throughout the freezer. The evaporator coils are filled with frost so air doesn t get space to pass through them to get cold.