Fridge Freezer Blinking Led Light Not Cooling Not Freezing – SAMSUNG RB31FERNDBC – Board Replacement

If your fridge freezer has suddenly stopped cooling, with a single blinking light flashing on the control panel, this video will show how how to troubleshoot and possibly fix it with a board replacement.

Disclaimer: All repairs carry risks, consult a professional if in doubt, otherwise do at your own risk.

This is my Fridge freezer from Samsung (see link below for detailed specs), model Samsung RB31FERNDBC, bought from John Lewis in October 2014, for £449.00 brand new. It came with 2 years manufacturer warranty, and 10 years warranty on the invertor.

SAMSUNG RB31FERNDBC website link:

2 weeks ago, the freezer started to defrost, followed by the fridge. I called Samsung up, and intitally they told me that I was out of the 2 year warranty period, but as a special one off, they will authorise a free service call out and repair.

This video is not sponsored and Samsung has not asked me to review this product. I bought this fridge freezer with my own money and the one off free repair is independent of my channel.

This is how I met Chris, who kindly agreed to be filmed and share his technical know how with all of us to troubleshoot and fix this issue.

Chris has his own Youtube channel, link below, but he is not active on it yet, and has only uploaded a few videos as a non intentional Youtuber so far. Hopefully we may get him again on this channel for future projects.

Time stamps:

00:26 Video taken from:
Samsung Fridge Freezer RB31FERNDBC Product Overview |

01:35 Start of Troubleshooting

02:26 Opening back cover for board identification and replacement

Chris Betts – Youtube Channel link

Amazon Links:

Mastech Ac/Dc Auto/Manual Range Digital Multimeter, Ms8268, Green, Black £26.00

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15 thoughts on “Fridge Freezer Blinking Led Light Not Cooling Not Freezing – SAMSUNG RB31FERNDBC – Board Replacement

  1. NubSack says:

    Ours just went dead. The flashes I'm getting means bad inverter board or compressor. I'm trying to figure out how to test if it's the board for sure. If you buy a board they say you can't return it if it's been installed. Then I'd be out $110 if it ended up being the compressor.

  2. Siddharth Poojari says:

    I've a linear Inverter LG model refrigerator which shows dual LED blinking on a pcb. What does that means. Red 3 times with a gap and once pressed the reset button green and red together blinks.

  3. Leo Leo says:

    Samsung RT45KSSW fridge compressor over heats.
    Right side body gets hot.
    Main control PCB led starts blinking 5 times after few hours.
    Cooling deteriorates and compressor gets untouchable hot.
    Fridge is not inverter type.

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