Samsung refrigerator not freezing
My refrigerator Samsung model: SR-C42NMO . compressor is running,no ice accumulation on the evaporator but it is not freezing.
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Rep: 685,2k
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Solution 1:
Condenser Coils are Dirty
The condenser coils are usually located under the refrigerator. They dissipate heat as refrigerant passes through them. If the condenser coils are dirty, they won’t dissipate the heat effectively. As debris builds up on the coils, the refrigerator becomes less efficient, causing the refrigerator to work harder to cool down. If the coils are significantly dirty, the refrigerator will not be able to maintain the proper temperature. Check the condenser coils to determine if they are dirty—if the condenser coils are dirty, clean them.
Solution 2:
Condenser Fan Motor
The condenser fan motor draws air though the condenser coils and over the compressor. If the condenser fan motor is not working properly, the refrigerator won’t cool properly. To determine if the...
Solution 3:
Evaporator Fan Motor
The evaporator fan motor draws air over the evaporator (cooling) coils and circulates it throughout the refrigerator and freezer compartments. Some refrigerators have more than one evaporator fan...
Solution 4:
Start Relay
The start relay works in conjunction with the start winding to start the compressor. If the start relay is defective, the compressor may sometimes fail to run or may not run at all. As a result, the...
Solution 5:
Temperature Control Thermostat
The temperature control thermostat directs voltage to the compressor, evaporator fan motor, and condenser fan motor (if applicable). If the temperature control thermostat is not working properly, it...
Solution 6:
Start Capacitor
The start capacitor provides a boost of power to the compressor during start-up. If the start capacitor isn’t working, the compressor may not start. As a result, the refrigerator will not cool. To...
Solution 7:
Thermistor
The thermistor monitors the refrigerator temperature and sends the temperature reading to the control board. The control board regulates power to the compressor and evaporator fan based on the...
Solution 8:
Temperature Control Board
The temperature control board provides voltage to the compressor and fan motors. If the temperature control board is defective, it will stop sending voltage to the cooling system. However, this is...
Solution 9:
Compressor
The compressor is a pump which compresses the refrigerant and circulates the refrigerant through the evaporator and condenser coils. If the compressor is not working, the refrigerator won’t cool....
Solution 10:
Main Control Board
The main control board might be defective. However, this is almost never the cause. Before replacing the main control board, test all of more commonly defective parts. If none of the other components...
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Samsung French door RFG298AARS - 9 years old wont cool (starting to feel like this was a good run based on other comments)
BiMetal Thermostat - has continuity (looks like it wont open the circuit until 140
Temp Sensors - amp value good @ room and freezing temps
Compressor will come on and try to cool (wattage goes up to 200w-300w)
If I unplug the fridge(for awhile) it will get down to 41 or so in the fridge when I have it set to 36.
After leaving it on for awhile the temps go back up.
Defrost heater is working
Evaporator fan is working..checked with magnets on the door.
Freon leak?
Rep: 448,1k
11
366
1,4k
@The Lovely Lover Lisa Page,
What won’t cool, the fridge or the freezer or both?
What is the temperature getting down to in the freezer section, you didn’t say?
There are two evaporator units in the model, one if the freezer section and one in the refrigerator section.
Does the compressor run continually trying to cool down the refrigerator or does it stop at some point?
According to the manual it should stop after 6 hours to do a defrost and then every 6 - 11 hours after that for the freezer and 12 -22 hours for the refrigerator.
For starters, here’s a link to the self diagnostic function section of the service manual for the refrigerator.
Hopefully performing the diagnostics may help to pinpoint the problem.
Also not sure what you meant by “Temp Sensors - amp value good @ room and freezing temps”. Both the sensors should have a resistance value of 5K Ohms at 77F (25C) so measuring the current flow through the sensors might not be an accurate guide as these are NTC thermistors so the resistance varies due to the temp variation.
As can be seen in the image below taken from the datasheet for the type of thermistors (502AT) in both the fridge and the freezer, the resistance can vary from 154.6K Ohms to 412 Ohms depending on the temp so the current flow will alter accordingly. Were the Ampere measurements in line with the resistances shown in the specification, dependant on the voltage applied of course?
(click on image to enlarge for better viewing).
With regard to a refrigerant leak, are there any noticeable oily deposits below or on the compressor or on the condenser coils etc? If so this may indicate a refrigerant leak as there is a special lubricating oil added to the refrigerant to lubricate the compressor.
If there is then the sealed system would need to be tested by a licensed refrigerator repairer so as to comply with the environmental laws in place .
Hopefully a start
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Same problem here. I've checked the fans, the freezer coil, the compressor. Everything seems to be working properly. Fridge gets cold, freezer doesn't. Is there some kind of valve that controls freon going to fridge, freezer or both?
@Michael Stimpson
What is the model number of the refrigerator?
Did you check the freezer thermistor, you didn't say?
If there are two evaporator units i.e. one in freezer and one in refrigerator then there is a valve, operated by the control board that directs the refrigerant gas as required i.e. both evaps or one or the other
Same Problem: Samsung RF323TEDBSR
Thermistor reads correctly (65 degrees) checked with thermometer in freezer section.
Compressor, inverter board, refrigerator temp (35 degrees) all check good.
Freezer evaporator not cold to touch although compressor and evaporator fan both on and high pressure tube from compressor to condenser is very warm.
Ice maker in top works.
I presume there is a valve not opening to let refrigerant gas to the freezer. How do I check the control board/ valve to learn where the problem might be?
Hi @Kris Hansen
Maybe the quickest way to find the problem is to invest in the service manual.
Unfortunately, I can't find a free download online, you may have better luck.
A lot of Samsung refrigerators rely on software control of the components e.g. fans, lights, heater, ice maker, compressor etc, dependent on the various sensors input, so knowing the diagnostic procedures as described in the service manual is a big help.
If the valve is faulty there is a 5 year parts and labour manufacturer's warranty on the sealed system, so if your refrigerator is within this warranty period contact Samsung about the problem as the valve is part of the sealed system. There is a 10 year parts, 5 year labour warranty on the compressor
If it is a dual cool possible leak in fresh food evaporater or a bad compressor. A qualified refrigeration person is the only person I would have work on it. There are other things that it could be. It seems to be that today's appliances just don't have the reliability.
Turtlehead
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