Question about LG LRBN20510WW Bottom Freezer Refrigerator

2 Answers

Freezer works fine refridgerator does not

My bottom freezer works fine but the refridgerator does not cool in the fresh food area. I looked at some solutions but none of them are helping. I took the back internal panel in the freezer out. Saw ice formed on the coils. Removed the ice although it was not stopping the fan from working. Saw the fan works fine when doors are shut. But funny thing is, if the freezer door is open and I close the switch with my hand I see some cold air coming from the vents in the fridge section. But the moment I close the freezer door the cool air stops. I have checked that the circulation fan works fine. I have tried disconnecting the fridge for 2 hours and also tried putting boiled water in a container in the freezer to remove condensation from the coils. Any more suggestions?

Posted by Ashwani Nandrajog on

  • Ashwani Nandrajog Jun 13, 2007

    Thanks Tresilla,

    Your advise was bang on. I am giving you best complements for that.I had removed the interior panel to expose the coils. Then I used left the refridgerator closed overnight and then using warm water I washed all the snow from the coils.

    Now, the fridge worked fine for 4-5 hours. But I think there seems to be another problem which I think could be the root cause of all this.

    The temperature selection panel seems to hang sometimes at an odd setting. The temperature selection panel is digital and has green LED's which indicate the desired settings.Intermittently, the panel shuts off the LED's from the Refridgerator side(left) and it starts showing 3 LED's with Max settings on the freezer side.

    I think that causes the temperature in freezer to be too cold and fresh section is totally off.

    That could also have caused ICE development in the coil section.

    What could be the cause of the temperature control panel to do this. What do you recommend to do.

  • Ashwani Nandrajog Jun 21, 2007

    Thanks for the advice. The LED's that get lit are 3 from the right not from the left and they are on the freexer side. The fridge side goes blank.

    Also, I don't know what you mean by toe panel. I could not locate the tech sheet. Is it possible to download the tech sheet. I contacted LG but they would not give me the tech sheet.

    thanks

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2 Answers

Anonymous

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  • Master
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Anan, I think your display is giving you a code on these LG. See if you can find the tech sheet behind the toe panel. On your display panel from memory, 3 led's lit from the left means a failed defrost thermistor. This could be the reason you are frosting up and restricting the air flow. There is a main board in back that you can ohm out the thermistors. Connector 4, the two bright orange wires #5 and 6, should ohm at 19K ohms at 50 degrees. Now Im doing this from memory, if you can find your tech sheet, it will give you precise information. Catriver.

Posted on Jun 14, 2007

  • Anonymous Jun 22, 2007

    anan, the tech sheet should be behind the grill at the bottom of the refrigerator, this tech sheet will give you all the instructions for testing this unit. In looking at the manual, Im not seeing any codes with just 3 lights on the posted model. Four lights on the right side would be a defrost problem. The defrost circuit has a inline fuse. You would find this on the right side of the evaporator. It sits along side with the evaporator thermistor in the same harness. I have found these to fail, eliminating the defrost cycle. Catriver.

  • Anonymous Jun 22, 2007

    Evap thermistor and fuse link. Catriver

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douglas smith

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  • Master
  • 1,462 Answers

Problem may be that the return vent from freezer to fridge is blocked with ice. best solution is to switch off for 24 hours with doors open. 2 hours may not be long enough to clear this blockage

Posted on Jun 13, 2007

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