Freezer temp light flashing and freezer and fridge have both defrosted. What the matter with it

The unit has a built in defrost cycle that is controlled by the main board. You need to replace that board.

have alook at this samsung fridge freezer channel on youtube



some good stuff re common samsung fridge freezer faults ">

model would help , you can get some good samsung information
click here samsung fridge freezer diy help

also check out

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Check out these tips...they can help you figure out whats going wrong with your refrigerator and why it is not cooling

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heatman101

Hi,

Check out these tips...they can help you figure out whats going wrong with yourrefrigerator and why it is not cooling

Refrigerator not Cooling or Fridge not Cooling

How to Defrost Refrigerator Defrost Timer Problem

Water Running in refrigerator from Freezer

Refrigerator or Freezer not Cooling or Getting Cold
heatman101


jhjk

You have a bad defrost timer or a bad defrost heater.

how to remove cover from twin cooler samsung sr-s20-s22

It seems it's the defrost sensor (freezer side). Waiting for it to come, ordered this morning. It appears to be a defrost fault, having read on the web it seems you can check the defrost sensor with a meter across whilst holding the actual sensor in your hand tightly to see if the resistance changes, anyway it didn't. Will post when the new one comes and I change it.

Control board has gone bad....

What happens is the defrost is controlled electronically from a circuit board, when this goes bad, the freezer quits defrosting, and freezes the fans that circulate air through the fridge side of things.

To check this, unplug the entire fridge, leave the freezer open, wait for it to defrost a bit, if this causes the fridge to start cooling again when you plug it back in, then its the defrost. You should also see ice crystals on the back of the freezer just under the icemaker.

http://forums.partselect.com/refrigerator-freezer-repair/rerifgerator-side-not-below-54-degrees-6699.html

Chances are the fuse in the evaporator section is bad and won't go into defrost automatically.  Samsung refrigerators are junk!  Good luck getting anyone to service this one.