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I bought LG Fridge fridge, Freezer door at the bottom (LBN20518SW) 3 months ago. It started having a wierd knocking sound (like someone knocking at the front door) every so often. I would like to know what is the cause. The temp. is ok and it appears to work fine. Thank you Patrick

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  • DEERHUNTED May 04, 2009

    We got the LG stainless side by side paid 1,500.00 plus and it also has the knocking sound , wakes me up in the knight thinking some one is at the door. We called LG AND THE TEC is going to look at it . Any one know what the problem is ? we have had it only four months.

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6 Suggested Answers

  • 159 Answers

SOURCE: refrigerator will not get cold, but freezer works

Do you know if the compressor in the back is running? If you can check that out get back to me and we can go from there. Most times if the fan in the freezer is running the defrost timer is ok.

Posted on Jul 12, 2007

eagle338
  • 4889 Answers

SOURCE: Zanussi fridge freezer - fridge not working

The defrost cycle is not happening like it should, that's what causes the block of ice (and poor air flow). If you have all that defrosted look at the defrost bi-metal, it usually is a small round disk with a couple wires coming out of it and it's clipped on the coils. When it's cold enough, it passes electricity to the heat elements, when it gets hot enough it "opens" and kills power to the heat elements. If that is bad (swollen cracked or bloated) and not passing electricity to the elements that's the problem. Another item would be the defrost timer itself, if it doesn't work (no clock motor turning) then it will never go into defrost. And the last and usually least expected failure would be the heat element themselves not working

Posted on Oct 09, 2007

fridgetech
  • 473 Answers

SOURCE: refrigerator compartment not cooling

If you are sure the fan in the freezer is running and you don't feel any air flow out of the top middle vent inside the fridge section, then the damper motor must be bad. The damper motor is behind that vent cover inside the fridge section.

Posted on Nov 16, 2007

  • 210 Answers

SOURCE: Temperature Control not working on LG fridge

It is an error code. The thermal fuse in the freezer section has gone. It has to be replaced. To get by in the short term, uplug the unit for 15 minutes, then plug it back in. It will run until it hits the defrost again (approx 5 hours) Part location is 401A and part number is 6615JB2005C. It is easy to change once you get the back cover off. Plug in part.

Sgt 48

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Posted on Jun 07, 2008

stradeteox
  • 88 Answers

SOURCE: freezer working fine but fridge isn't

Either the damper that the air flows up through is closed or the return air flow vents are blocked with clear ice.

Do you feel the air come out all the way at the top of the duct assembly when the freezer door is opened (but it then stops when the door is closed)?

If so, then it sounds like your return air flow vents are clogged. These are located to the left and right of the duct assembly in the rear/bottom of the refrigerator section. Sometimes you may have to slowly pour hot water into these vents to get the clear ice to thaw. The water should go down into the freezer section behind the evaporator and then out the drain in the back.

If you do not get the air to flow out the top of the duct assembly then the damper is staying shut. This could be either a bad damper in the duct assembly or the main board my not be sending voltage to the damper. Hope this helps.

Posted on Jan 08, 2009

  • 5 Answers

SOURCE: Fridge has become freezer and freezer become fridge

sounds like the control board i had same problem along with no light i had to have control board replaced working fine now
dmb

Posted on Feb 09, 2009

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