Question about LG LRBN20510WW Bottom Freezer Refrigerator

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LG LDC22720SW ECU reads 5-6-7 on freezer side

Our LG LDC22720SW is acting up. The fridge will randomly shut off, and the electronic control unit will read 5-6-7 on the freezer side. anyone encounter this before?

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I have a similiar problem with my LG refrigerator. The freezer settings get stuck on 6 and 7, while the refrigerator side is showing nothing. Pushing the buttons to adjust the temperature does nothing. The whole time, my food is getting spoiled.

Posted on Oct 18, 2009

  • rockdoggy113 Jan 17, 2011

    We have the exact same issue. The only fix we have found is to unplug the refrigerator for 8 hours. Not convenient I realize, but it works. Our problem is we have had service people out to check it out, but it works fine when they get here and they tell us they can't tell us what's wrong if it is working fine. And it generally happens on the weekend when these guys are not working or the rates are ridiculously expensive, so the only option is to unplug, move our food to our upright freezer, and wait it out.

  • sludgeoccurs Jul 05, 2011

    I had the same problem. The manual showed how to remove the drawer. I removed the drawer, ice maker and the rear inside panel and found that the freezer fan and cooling coils where frozen solid. I used a hair dryer and my shop vac and melted all the ice to end the problem . The temperature read outs are normal again.

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