Samsung Refrigerator Defrost Problem. The most common symptom of a refrigerator with a defrost problem is a completely frosted evaporator coil but you also may see ice buildup on the coil insulation or the coils themselves.
During a typical refrigerator’s cooling cycle, moisture in the air turns into ice on the evaporator coils.
The coils have to then go through a phase called defrost, where they’re heated to melt that ice which continues to build as more moisture passes over them from the surrounding environment.
In some cases, dirt and dust can collect between your fridge’s fridge coil insulation or even on top of its coils causing overheating which leaves you with an expensive repair bill.
Samsung Refrigerator Defrost Problem
Press the Power and Freeze buttons simultaneously for about 8 seconds until the display goes blank. Press the Disconnect from Power and Refrigerator buttons at this point to reset all settings. You need to reach the compressor in order to safely defrost it. There are three condenser coils located on the back wall of your refrigerator compartment, about halfway up and toward the rear.
You can learn how to fix Samsung refrigerators that cause defrosting problems here.
Faulty Or Weak Defrost Heater
If your fridge fixes itself, you would notice that the vents are not working to ensure there is good air circulation. If you take out the evaporator coils to clean them up, you’ll notice frost has built upon them.
This is because the defrost heater assembly isn’t functioning well enough. Over time, as ice and frost build up on your freezer coils, your fridge will begin to cool at a much slower rate as the freeze is restricted from flowing as freely as necessary.
The mechanical workings of the freezing system are controlled by the thermostat, which uses thermistors.
This keeps an eye on the temperature within the cooling coil at all times.
It then initiates both the heating and defrosts cycles as soon as it’s noticed that something may be amiss.
If you’re having difficulty with your freezer, one of the first things to check is whether or not any of these parts are malfunctioning.
Now here are some tips for making sure that you don’t accidentally disable your defrosting system altogether while troubleshooting if it appears to be stuck in place.
Defrost Circuit Problems
Sometimes the heater wires burnt out in your Samsung refrigerator can contribute to a defrost issue.
The freezer may not be getting engulfed in enough heat from the defrost heater wires to properly do its job of warming up the compartment, and that could cause the dispensing system to become clogged.
Also, a faulty fan unit or a failed pump can prevent a full defrost cycle from taking place, which again will likely lead to a clog forming elsewhere in your refrigerator.
The Defrosting Heater Is Defective
Defrost heaters and timers can generate a small amount of heat. When it comes time to defrost the coils, they warm them up for a bit to help eliminate any frozen-over condensation that’s built up.
If either one stops working correctly, the refrigerator will continue trying to defrost its coils because it will not turn off as usual.
At best, the unit could become inefficient due to having cooled off any portions of the refrigeration system that have already been defrosted.
More significantly though, if the unit fails to turn off because it was not able to defrost itself periodically as instructed by a broken defrost control system, a buildup of dangerous pressure could result inside.
Issue With Air Vents
Air vents in a freezer are just as important to ensure proper freezer function as helping keep the temperature-regulating mechanisms from being damaged from excessive frost buildup.
Air vents within a refrigerator or freezer need to have their filters regularly changed.
If you notice that there is clogged up frost happening regularly, it could mean that your air vents filters need to be cleaned, replaced, or better yet replaced with new ones altogether.
Check for this first step before weeding out other possibilities; it might save you time and money.
Faulty Defrost Timer
The defrost timer helps to regulate the temperatures of your refrigerator by turning on your defrost heater at intervals throughout the day.
Frost can accumulate within your evaporator coils, which is why the defrost timer cycles on the heater periodically while you are away so that there is no build-up while you are home.
‘When the timer hasn’t advanced for a long period or it hasn’t sent power to the defrost components within 30 minutes.
Then you will probably want to replace it because this could indicate that certain parts of your refrigerator aren’t able to perform their functions correctly.
Fuse-defrosting sensor Issue
The evaporator temperature sensor senses the air temperature in the freezer and manages the defrost cycle.
The sensor has a backup fuse that will blow if there is a failure with the sensor itself. If that fuse blows, then you need to replace it with a new one.
Once you’ve replaced it, there’s no way of resetting or reprogramming it.
Make sure you buy appropriate fuses before trying to repair any auxiliary components of your refrigerator.
Another option would be to change out the entire defrost system – but that may not be cheap unless you’re up for doing some DIY electrical work.
However, if neither solution sounds appealing to you, shop around for handymen in your area who are willing to help with this project.
Samsung Refrigerator Defrost Problem