Vibration and banging at highest speed in spin cycle
The spin cycle starts out slowly, no problem.... ramps up to 'medium' speed, all is still well.... ramps up to highest speed, a banging noise starts and intensifies. The steel drum is minutely out of balance with the outer drum (seen with the rubber gasket removed).
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Re: vibration and banging at highest speed in spin cycle
This may be the problem, but it could also be an imbalanced load, a broken shock or a bad off balance sensor.
However, if you do decide to replace the tub, it's easier and a few dollars more ($229 cdn) to replace the whole tub as a kit. It will shave off at least 45 mins to an hour of your repair time, instead of spliting the tub.
Good luck. For a trained tech, it's an hour and a half job. So expect it to be half a day if you are doing it for the first time.
Also, beware when you put it all back together, the coin catch (black hose that goes from bottom of tub to drain pump) can be difficult to get back on, and if it's not on just right, it will leak.
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A. Put unit into "clean washer". Press "Cancel" 4 times. Unit should ramp up to a medium spin, about 500 rpm and then coast to a stop.
B. Once the unit is done, turn it off.
C. Put the unit back to "clean washer." Press the "Start" button 4 times quickly. Unit will now go into a self test and error codes should pop up if there are any to display.
Now that the unit knows what zero and 500 rpm is, it should be able to ramp up to the right spin speeds at appropriate times
I can't offer a definitive answer but I have had a little experience.
It is possible it is spinning too fast. The brain of the machine needs to know how fast the motor is spinning in order to control the speed. The motor is fitted with a tachometer sender for this purpose. It is important any replacement motor is fitted with an identical tachometer to the original.
The brain is programmed to cycle the spin slowly at first at increasing speeds to allow the washload to settle and for most of the water to be removed so when full speed is reached there will be less vibration. Perhaps the cycle is incomplete or absent and it is starting on a high speed spin...
The washtub suspension can become worn and weak even though it appears intact...
It is conceivable the drum is imbalanced - a drum that is nicely balanced will not vibrate when spinning without a washload.
Some banging or knocking during the ramp up to spin speed in this washer is normal. It is difficult to determine whether your washer has a problem or not based on your description. This banging lasts for varying amounts of time until the load is balanced and the washer ramps up to the full spin speed. If the load can not be balanced on the first attempt, the washer will ramp down and then tumble and attempt again to ramp up to speed.
This may be the same thing that you are hearing when your washer ramps up to spin speed. Since the washer does spin at the full speed, there is not likely a problem with the washer. The components are designed to withstand repeated vibration and reasonable banging or knocking.
The washer will vibrate to some extent at high speed. If you feel that the vibration is excessive, I recommend that you check the stability of the leveling feet. Press down on the diagonally opposing corners of the washer to check for play. If the washer rocks at all when conducting this test, I recommend that you adjust the leveling feet to eliminate this play even is the washer is not perfectly level after making this adjustment. This may help reduce the banging and vibration. Other than that if it is brand new call the people who you purchased it from so you don't void any warranties by taking it apart.
I had a washer that at the beginning of the spin cycle it was fine, but when the water was half drained it would begin making a banging noise. When the draining reach the bottom and the spin speed increased it was fine. Finally found the problem - What happened was the tabs that hold the control arms for the brake had loosened. During the spin cycle especially in the middle of the cycle (when torque was at the maximum and speed was at medium. The brake spring would flex out due to compression and hit the some extended metal tab on the brake housing. Once the speed increased and the torque reduced the spring no longer hit the housing tabs. Fix the problem by bending the tabs that hold the brake control arms in place to better hold the control arms in the proper location.
uE is unbalanced error. When you have bulky items, wash them with a slow spin speed. Larger loads actually balance out better, so adding items might help instead of subtracting them. After the cycle completes, if you want to you can turn the power on again and (without selecting a cycle) just push the spin speed selector button and select the next highest spin speed. The load will most likely make it through the next higher speed now that it is partially spun out. You should get a 14 minute spin and pump only when you start it now.
(I know this is an old question, but its probably a common question for new owners - including me a couple of weeks ago...)
Power the unit back on, press the spin speed button and it will select the "drain and spin" cycle. Pressing the spin speed button again will select different spin speeds as well as just "drain".
Something you might try instead of medium spin speed is to turn on "SpinSense". To turn this on (and off), press and hold the "Stain Cycle" button for 3 seconds while any wash program is in process.
What SpinSense does is measure the imbalance by doing a very slow spin before cranking the spin speed up (and measuring how constant the very low spin speed is). If the balance is out too much, it will stop, let the clothes drop, and then try another slow spin. It will try this over and over many times until the balance is decent. Then it will let it rip. It makes a huge difference, but it can spend a lot of time getting a good balance some times.
SpinSense also seems to be able to detect if the machine is shaking terribly, shut the spin down and try again.
Our LG 2688 is on our 1st floor (wooden floor). Without SpinSense, the vibration was terrible and with it, it is tolerable.
For some reason we typically get less vibration with "Extra High" spin speed compared to "High" so that is another option you might try.