Question about Samsung Freezers
Good day. My Samsung fridge/freezer SR-S22FTFB runs normal for the first few hours when been switched on, both fridge and freezer temperatures were set for (- 18 and 2), both fans are running and when these temperatures were achieved I notes that the system switched over to the defrosting cycle for a period of time. The fans and compressor switched on again and the above mentioned cycles repeat themselves for three to four times (the Ice tray deliver +/- two ice deliveries) then the completely system stops refrigerating and both fridge and freezer fans as well compressor does not switch on again. The whole system remains in this state not the compressor neither does the two evaporator fan motors switch on again .The Freezer digital temperatuur displays (- 18 degrees) start flashing but the temperature of the fridge showing 2 (not flashing). Although the temperature show -18 and 2 the temperature inside the refrigerator and freezer are increasing. The only way to reset every thing to the original state is to switch the power of at the supply and it wil repeat what was said above. Things that I note and that I kept in mind. 1. The Machine compartment was clean - no dust 2. There were no water leakages - except for the ice in the icemaker that melted due to the increase of temperature inside freezer. 3. Both evaporators were ice-free. 4. No drain blockages - water were spotted inside Machine compartment spillage bucket - Showing defrosting did take place. 5. No funny noises when fans are running or during mentioned cycles. 6. Enough space available at the back of unit for heat dissipation 7. No power failures recently. 8. Water filter clean and functioning. 9. Both temperatuur sensors open and clean. 10. All door rubbers and unit in excellent condition. 11. I note that the Quick freeze button does not faction as mentioned in the Manual. It seems if I need to press the Vacation and Freezer Buttons to display the "Self-diagnostics check list" in steed of Quick and Vacation. -We had no need to use Quick freeze previously. 12. My unit warranty has expired. Your assistance or any information will be highly appreciated. Thank you,
My name is Peter. I am a retired field service refrigeration technician.
The normal setting for a freezer is -2 to +2 degrees F., and the normal setting for the fresh food section is +35 to +40 degrees F.
You only have one source of cooling and that is your freezer. With the settings that you have, you are asking your unit to do what it is not designed to do.
The ice maker is struggling because if it is a cast steel ice cube mold, the heater beneath it is not designed for the current to break the ice cubes free @ -18 degrees F., or if you have a plastic flex ice cube mold it is too ridged to flex enough to break the ice cubes free. Normally your ice maker should dump 8-10 times in a 24 hour period.
A note on food storage. Make sure you do not overload your freezer of fresh food section to the point where food product extends beyond the edge of the shelves.
Posted on Nov 18, 2014
Testimonial: "Hi Peter. Thanks for your quick response.Ever heard of Degrees Celsius ... LOL (Fridge +7 to -1 and Freezer -14 to -26 Degrees Celsius) We did take out all the products and left a few buckets of water in both sections for testing purposes.In the meantime we manage to get more information and I will change my Question above accordingly to that. I think we are close to the real cause of the problem.I am a retired Electronic Engineer myself. Thanks.Have a nice day."
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Posted on Jan 02, 2017
In most cases, an evap that freezes up is either an air flow problem or no defrost cycle. Older Hobarts have mechanical defrost time clocks. It could be locked up i.e., not running so no defrost cycle.
It could be coming out of defrost too early because the sensor that monitors the evap temp is not working properly.
The door could not be closing. If left cracked open, it will freeze up every time as unit never hits temp., keeps unit running. Warm air is seeping in and the moisture freezes on evap.
Lastly, the defrost heater(s) may not be working. Burned out, shorted, broken wire, etc.
Good luck and hope this helps.
Posted on Mar 29, 2009
SOURCE: Freezer temperature v
This sounds like your motherboard,computer or control board(they call it different things in different models) is bad. It is responsible for the fan speed and timing of the defrost cycle.
To locate your timer, motherboard, control or adaptive
defrost control , enter your model number and search for the part or post back
Posted on Sep 20, 2009
DO NOT TRY TO MODIFY TIMING CYCLE.you would need to completely modify printed circuit board and inbuilt computer......some freezers cycle around 6 to 8 hours.the temperature can only be checked say every 12 hours to get an average reading
Posted on Feb 13, 2010
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