Why does my freezer keep thawing and refreezing?

Serviceman Repairing Freezer With Toolbox In Kitchen

 

 

Why Does My Freezer Keep Thawing And Refreezing?

I’m going to post this on other forums so others can find it too… The refrigerator has two devices called thermistors that measure the internal temperature. One is usually located at the bottom of the freezer and the other is located inside the freezer behind the rear panel mounted on the evaporator coil.

Defrost problems can occur if the back of the freezer where the evaporator coil is located is heavily frosted. Frost formation only on the back of the freezer where the evaporator coil is located indicates a problem with the defrost cycle.

Once the evaporator coil gets hot, the thermistor on top of the coil starts to heat up, which instructs the controller to stop the defrost cycle. With the evaporator cover closed, look at the evaporator coil, if the evaporator coil is completely covered with ice/freeze there is a defrost issue. If there is a problem with defrosting, a thick layer of ice will form on the evaporator cover.

If your refrigerator has a defrosting problem and won’t melt the ice, over time it will build up to the point where it cuts off the airflow. From time to time, the refrigerator must go through a defrost cycle to melt this ice that continues to build up on the coils due to moisture in the air. When the appliance performs a defrost cycle, it produces more water than the tray can hold.

If water leaks out of the appliance, this may be due to an overflow of the condensate pan. The water does not evaporate in the condensate tray until the next defrosting cycle. A sealed system can leak, and there is not enough freon to cool the device to the desired temperature.

If the environment is too cold, the freezer may not have enough time to maintain the temperature. The freezer temperature may be too low if the frost is light, snowy and seems to be all over the place. Make sure your refrigerator and freezer are at the recommended temperature. Make sure the appliance controls are set to 0°F (-18°C) for freezer and 37°F (3°C) for refrigerator.

Turn off the refrigerator and freezer thermostat and wait up to two days for the refrigerator to manually defrost. If defrosting does not solve the problem, repeat the defrosting process, but this time unplug the freezer for 2-3 days. When you’re done, set the freezer temperature to the lowest setting and use the fridge knob to keep the salad from freezing.

If there are even a few ice crystals left in the contents of the freezer, it is safe to re-freeze the food. If the problem can be solved by plugging the freezer cord back into the socket or turning off the circuit breaker, check if the contents of the freezer are completely or partially frozen. In most cases, by correcting the problem that caused the frost and allowing the freezer to go through a couple of defrost cycles, the excess frost can be removed and the appliance will return to normal operation.

If this condition persists after defrosting is complete, the unit should be repaired. Defrost is due to the fact that most refrigerators/freezers have minimum and maximum temperature limits for proper operation of the appliance. There are various components in the defrost system that can cause the refrigerator to not defrost properly, resulting in ice build-up or ice formation even after the defrost program has started.

If you find that your refrigerator is having defrost issues and has an adaptive defrost system, this section will help you. This section will show you how to diagnose defrost problems if your refrigerator has master controls (excluding French door models). In GE electronic refrigerators, four factors can cause defrost problems: the motherboard, defrost thermostat, evaporator thermistor, and defrost heater.

Most refrigerators regulate the temperature of the freezer compartment (minimum) and then regulate the refrigerated section using a device that allows air to circulate between the freezer and refrigerated sections. When the compressor is running, the fan forces air through the evaporator coil to cool the freezer compartment and fresh food area.

This ensures that the refrigerator does not defrost too frequently while still providing enough defrost to keep the evaporator coils running. Typically your freezer will run a defrost cycle once or twice a day depending on how far the door is open and how long the compressor has been running (the controller board controls this type of thing). If you notice that the freezer continues to defrost more often than usual and cannot keep food frozen, this may be due to the following reasons.

If your freezer failed due to a power outage, you will need to do everything you can to prevent all food from defrosting. If the shutdown is not expected to last more than 12-24 hours, the freezer can be covered with a blanket or ice bags can be added to help maintain the temperature inside the freezer.

Keep in mind, however, that not all freezers will make the same sound when this happens. Some freezers have a timer that defrosts food so it doesn’t freeze. One of the most obvious signs that your freezer is shutting down is when it’s so frozen that door sticks or ice starts to form on the side where you should literally gouge it out. If you notice that your food is spoiling earlier than usual, and things like soda or beer take a long time to cool, this could be another obvious sign that you need to repair your refrigerator.

I just checked the inside of the freezer and noticed that the metal holder at the bottom of the freezer is hot and the water drops are starting to melt again. To maintain the effectiveness of a manual defrost freezer, it should be defrosted every time a quarter of an inch of ice forms on its interior walls.

If you are having problems with these things and need freezer repair in Oklahoma City be sure and contact Appliance Repair OKC Services by calling 405-378-4566 or visit our website at https://www.okcappliance.com or alternatively our Google business website at https://cutt.ly/YEnc8qk. Protect you frozen food items today by calling now!

 

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