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Refrigerator temperature can't be set to cold - sensor light shows 9C and keeps on beeping. Samsung model RB1855SL

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I had this exact problem with my 4 yr old Samsung RB1855SL refrigerator. BTW, the temperature display doesn’t display higher than 9C, even when its warmer inside. The fan wasn’t turning on to circulate the cold air, although the cooling coils were still cooling. There was no excess ice build-up. The freezer was working fine.

I thought perhaps the fan was toast or the temperature sensor. Then I noticed the interior fridge light was not turning off when closing the door (but the freezer light was). BINGO—thig light switch was the problem. A small piece on the inside of the fridge side of the switch was broken. When the door was closed, the broken switch didn’t let the fridge know that the door was in fact closed, causing the door alarm to keep beeping. This must shut the fan down in order to save energy when regularly opening the door.

DIY fix: I removed the switch (until I could get a replacement) which is located to the left of the lower door hinge (right hand side). Gently, with a flat nose screw driver, I pried it out.

The light no longer turned on when opening either door but that was a small price to pay compared to the incessant beeping and rotten food. The part can’t be very expensive and I can replace it myself. The local appliance repair shop will order it for me.

No expensive “internal brain” needed to be replaced or an expensive repairman needed to be called. Good luck!

Posted on May 18, 2009

  • christacoope
    christacoope Jul 14, 2012

    you rock! mine was the same thing. now works. woohoooo!

  • faryal_shoai
    faryal_shoai Oct 18, 2012

    Thanks Yamama for the answer , but light in my fridge is not light up , even when I am pressing the light switch at the bottom , if you can help me in that

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Hi mahanna.
Sounds like the computer brain in the refrigerator went out.
Hope its still under warranty, this would be an expensive fix.

Greg.

Posted on Aug 18, 2008

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