Question about LG Refrigerators

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Knocking noise occurs about 20 seconds after compressor starts. Sounds like someone knocking on a wood door. It last about 8-12 knocks and then stops. It does not occur everytime the compressor starts but more times than not. There is no water hooked up and the ice maker is turned off.

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  • steve
    steve May 11, 2010

    Check the compressor fan motor for something stuck in it or the fan blade tipping on something.

    And let me know.

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  • 1,314 Answers

Its Freon expansion at the part where the lines come in to the evaporator in the freezer its a nuisance but supposed to be normal go to your local appliance parts and ask for some sound damping pads and wrap them around the lines where they come into the evaporator lots of times this stops it

Posted on Mar 11, 2009

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1 Answer

Knocking noise about every hour or so,lasts 5 or 10 sec's. just started after 7 years .


This is the first sign of the compressor going out. You will either need to replace the compressor or purchase a new unit.

Oct 22, 2012 | Whirlpool 25.4 Cu. Ft. Side-by-Side...

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How do I stop the loud knocking noises coming from my refridgerator?


Pull the fridge away from the wall and inspect the compressor. Your description sounds like the compressor is hitting something. It is rubber mounted and usually can be pushed away from whatever it is hitting.You do not want to jamb something to stop the noise, as the compressor needs to move freely. Many compressors shake during start up and shutdown, and this is considered normal. Abnormal if the compressor hits something during this movement.

Feb 05, 2012 | Kenmore Refrigerators

1 Answer

Knocking sounds like something is knocking on the door


Hi

The knocking could be the damper if it last for about 5 seconds when the compressor turns on or off, or it can also be the refrigerant gassing off in the evaporator this sound can be really intermittent, but is normal with the refrigerants used today. However the compressor you see is actually the outer shell, inside of which is a refrigerant pump (i.e.: compressor) which is on internal support springs. When the unit turns off, the momentum of the internal parts can sometimes knock against the outside of the compressor case. The only "fix" would be a new compressor. However this does not actually indicates compressor failure and most likely will run many more years with no problem.

Please get back to us if you have further query else please accept the suggestion.

Thank you for contacting fixya.com

Jan 03, 2011 | Refrigerators

2 Answers

Knocking noise


it could be the compressor

Apr 20, 2009 | Refrigerators

1 Answer

I having a sporadic knocking from the bottom of the reffer side


ProbabyTry to Change Rubber Base Groumet for Compressor motor and there is nothing with freon

Kindly inform me When Solved

Good Luck

Feb 16, 2009 | Whirlpool 25.6 cu. ft. Side-by-Side...

3 Answers

Amana refridgerator mdl abl2222fes knock noise


sounds like the compressor vibration dampers are wearing out. the dampers are the rubber washers that seperate the compressor from the chassis of the fridge. when they start to deteriorate, and the compressor kicks on, it will bounce against something in the chassis, causing a knocking noise.

Jan 22, 2009 | Amana ABL2222FES Stainless Steel Bottom...

2 Answers

Knocking/banging sound on compressor start up


Check the compressor mounts. They are usually springs mounted with rubber. If they are two loose the compessor wil hit some other metal part when starting up. Shakle it and see what it is hitting. Ajust accordingly. 

Dec 27, 2008 | Refrigerators

2 Answers

Knocking noise coming from Whirlpool Gold refrigerator


I also have a new Whirlpool Gold fridge (bottom freezer with French doors) and it was making a knocking sound. The knocking sound would start when the fridge kicks in and starts running to cool, and would last for about a minute or less and be a slow knock.
I called Whirpool customer service since it is new and on warranty. They sent out a technician and he said the knocking is from gas/air built up in the copper tubing for the freezer because the copper tubing is too cold, and when the fridge first turns on it forces the air through, making the knocking sound.
His "fix" was to adjust the copper tubing so that it is closer to the heat of the motor/compressor and heat of another copper line so that the cooler line stays warm so the air/gas doesn't build up. His fix worked slightly, but the fridge is still knocking, just not as bad and not as long - it knocks fast for about 5 to 10 seconds instead of a minute.
Going to call customer service again soon and see where to go from here.

Dec 15, 2008 | Refrigerators

1 Answer

Refrigerator knocking noise


the motor could be on the way out. Put your hand (carefully) on the motor (back of the refridgerator), if it is too hot to touch then the motor is burning out and will need to be replaced.

Nov 15, 2008 | Kenmore 64254 / 64252 / 64259 Top Freezer...

1 Answer

Kenmore Refrigerator making loud noise


Does the sound occur when the compressor is starting or shutting down? and only lasts for a couple of seconds? I had one do the exact same thing. Sometimes it would also wake me up at night. If so, I'm afraid he is right. On the bright side, it worked fine for years. I gave it to a girlfriend when I purchased a bigger one and it is still working today. The only thing you can do is change the compressor, which is probably not $$ practical.

Nov 05, 2007 | Samsung RS2556 Side by Side Refrigerator

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