Question about LG LRTP1231W Top Freezer Refrigerator
I get an intermediate high pitched whining or humming noise from the freezer, its annoying so i turn fridge off and on and it goes away can ya tell me what this is??
The whining and/or whistling noise is caused by a problem with the MAIN CONTROL BOARD, not, the variable speed fan motor. You can change the fan motor and the related thermistors and the problem will persist. The Main CONTROL BOARD is located on the back of the refrigerator behind a panel with from 3 to 10 quarter inch hex head screws. All of the of the connections to the board are normally easy to remove and re-install on the new board. I have had some new boards with bent pins, so, be careful when trying to put the plugs on the pins. Also, you can not get the plug configuration wrong, since, every plug has a specific number of pin holes. The board itself has 4 white nylon pins holding it to the refrigerator. These pins have a side that you must push in to release the board. I use a tiny screwdriver for the job. As you might be able to tell, I do this for a living, but, not on a paid per job basis. I work at a large apartment complex with all G/E appliances. Please unplug the refrigerator before performing any the the above actions. The Main Control Board is the source of many other problems, such as, Compressor not running, Ice and Water through the door problems and defrosting of the evaporator coil. Don't let a repairman condemn a compressor before it is proven to be defective.
Posted on Jun 15, 2009
We had to have a forklift to get this refrigerator into our house; now all we would like to do is shoot it and push it off the balcony! We have been tortured by the intermittent whistling for months and it is driving us crazy. If the noise, which apparently cannot be fixed, is causing undue stress and diminishing the quality of life for others out there, together, we may have a class action suit brewing. If for nothing else, to get a replacement appliance that does not whistle while it works!
Posted on Nov 17, 2007
Our freezer makes a noise similar to what you have described here from time to time. Each time it's happened has been when the bucket holding the ice from the automatic ice maker is filled to capacity. I remove the bucket, get rid of some of the ice, replace bucket. Noise stops shortly after :)
Not very scientific but something to try! Hope that helps.
Posted on Apr 03, 2008
One of the capacitors on the fridge's motherboard which controls the freezer fan speed is dying (i.e. instead of delivering a constant electricity supply, it delivers varying amounts of electricity) causing the fan speed to continuously speed up and slow down, the reason for the whining. You need to replace the motherboard (unless you're a techy and somehow are able to identify and replace which capacitor is faulty on the motherboard, much too involved for me, anyway). GE will do so at a "discounted" price (in the States) of $290, the repairman/woman will be in and out of your kitchen in less than half an hour, having installed a new and upgraded motherboard. The whining on my fridge is gone and the fridge is practically silent now whe and operates normally.
Posted on Aug 08, 2009
I have this same model and it makes this noise when the controller slows down the fan. It is a resonance which I think is caused by the fan blades themselves. I took the fan motor out and lubed it bearings to be sure they were ok but that had no effect. I will probably go back in to check the position of the fan blade on the motor shaft? Can't think of any thing else to try. I think the noise goes away when you turn it off and on because the controller starts the fan at a higher speed after being shut off? The only other thing I could suspect is some type of resonance in evaporator? It is a very weird sound. Like a ghost in your fridge.
Posted on Oct 24, 2007
The problem is that the ice maker leaks ice often, and it collects around the fan, making the fan inoperable. This causes the whine noise. The only solution is to chip the ice away in the back by the fan, which requires emptying the freezer. This is the worst refrigerator we have ever owned.
Posted on Feb 04, 2007
I had a similar problem. It was a fan in the back of the freezer unit. I disconnected it electrically after pretty much ripping the back panel off the freezer in a late night bought of frustration. (from the inside.)
I'm guessing the fan had blown a bearing. No word yet if my fridge will work efficiently without it...
Posted on Dec 03, 2007
Have a GE Refrigerator GSH25JST - 3 years old. Same problem - high pitched intermittent whining. Initally thought is was the fan. Called out GE repair. The whining sound was not happening when they showed up but he noted the fan seemed to be pulsating in and out. They replaced the motherboard which is on the back. That did the trick. Explained something about energy efficency and the motherboards are suppose to regulate the fan, etc. Watched him simply plug in the new motherboard - nothing to it. I said that no one should have to replace something that on a 3 year old refrigerator. Total service call - $100 including motherboard part. GE repair man said that normally it would be a $400 repair but they would discount it. Refrigerator working great now.
Posted on Aug 23, 2010
The owners manuals usually have a "what's that noise" section since Refers make all kinds of creaks, groans and moans these days due to refrigerant flow, ice making operations, defrost cycles, etc. Lots of noises possible. Check also for the drip pans underneath vibrating, that can drive you nuts too. Make sure all the metal tubes, etc. are not rubbing anywhere and vibrating. It will take a little flashlight and on your belly work but check mostly the underneath area by the compressor area for things vibrating, etc.
Posted on Nov 10, 2006
I had a high pitch whistle coming from my lg f.f. which continued when switched off.
I emptied the ice compartment, but it didnt help, I switched it off for 20 mins, that didnt help,
I checked the water filter that didnt help, but i found a small plastic item on top, which was the
receiver for our wireless door bell, that was the guilty party.Changed the batteries, and peace at last.
Posted on Sep 20, 2008
Thanks for your suggestions. I turned off the freezer and emptied the ice bin. All is quiet now. Thanks for the advice about the mother/ control board. If it starts up again, I will know where to start next! I love the Internet!!
Posted on Oct 07, 2012
The LG freezer fridge is a piece of crap. i had it repared and it is fine know but it still sucks
Posted on Dec 30, 2007
The problem comes from the fan. I believe a build up of condensed moisture cuases the sound when the fan gets turned on intermittently. . If you fold a piece of paper and grind into the fan with it it seems to lessen. the real solution however would be to coat the fan with something that would make it quieter. i have to take the grate off and see what to do. it is annoying. dan mccarthy [email protected]
Posted on Jan 22, 2007
I bought this ge refrig because it was advertised as 'very quiet'... but it moans and groans... repair tech basically said it's the coolant doing it's job... I'll ask another opinion soon... very frustrating.
Posted on May 07, 2010
Nice, you take the time to help and get "dissed." My guess was something rubbing the fan blade or associated with its vibration, that changes shape when it cools a bit, but i'm not a pro...
Posted on Jan 25, 2007
I have the same kind of fridge and it also makes this kind of noises, however, they are on the acceptable level. They sound more like a seal being happy with the new food. It is not all the time but sometimes. I think it is the contraction and expansion of the pipes that cause the noise and is not a sign of any problem. Of course all depends on the level of the noise you have...
Hope it helps. Greg.
Posted on Nov 06, 2009
I had a same problem, However the fan in the freezer seems stop and the freezer compartment is melting. Its a double door LG with 270 ltrs.
Posted on Apr 05, 2010
if there is no problem in the functioning of this fridge then the noise isn't a problem. but still i would advise you to have this fridge checked out by your local repairman.
Posted on Jun 11, 2010
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