Out of balance message being received constantly even after redistributing the load - knocking

Although redistributing the clothes might be the easy answer, you have have broken suspension strings or a failed shock absorber. The only way to check is to remove the case.

That is a common occurrence with dryers such as this one. Even though it sounds bad, it is harmless. If it really bothers, you can re-balance the load and it should reduce the vibration.

When Loading, Always Distribute Clothes Evenly (weight wise) With A Light Load Usually Clothes Will Become On One Side Before End Of Wash Cycle--If You Look Before Spin Cycle And This Had Happened, Redistribute and restart from present position (cycle wise)

May be a problem with agitator gear box,open on wash cycle and use screwdriver to by pass cut off switch by pushing screwdriver down on little switch that is located where tab on lid is.If agitator is traveling at too much of a rotation that may be cause,also agitator mat be lose if you can grab and move up and down.Then remove cap on top of agitator and tighten bolt,if lose if not agitator may need to be replaced!

The load is out of balance. Stop it, open the lid and evenly redistribute the clothing so it is not bunched up. Restart the spin and you should be fine.

To detect excessive wash tub movement and shut down the wash cycle. Here is a copy of my post from a real DIY forum;

Google this Neptune TL Washer FAV6800AWW 5 post down.

Here ya go.....in this post I discuss the issue related to unbalance error codes DC and UC;

Your FAV6800A or FAV9800A is going off balance with DC or UC unbalance error codes during spin cycle and you see/hear the wash tub banging around at the start of Spin Cycle of the wash cycle or a Spin Only cycle. If this is the condition the TDS (Tub Displacement Sensor) is working as designed and signaling the Control Board properly of an unbalance wash load condition.

The Control Board receives a varying D.C . Voltage from the TDS sensor and if the out of range D.C. Voltage limit continues the Control Board will halt the Spin Cycle and try to redistribute the wash load. If you are interested I will show you how to monitor the TDS input to the Control Board with a DVM.

The Control Board then starts the Spin Cycle again. If the wash tub/basket out of balance condition continues the Control Board will attempt another redistribute of the wash load. After several attempts (4 to 5 I believe) the Control Board will shut down the Spin Cycle and send a error code DC or UC to the LED display of the FAV6800A, my machine type. And I believe a text statement to the LCD screen of the FAV9800A machine i.e. something like "Unbalance Condition" I'm not sure what the text message is.

If you need help open a post in that repair forum and I will try help you through your issue.
The forum is free and my time is free I just don

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The "uL" message stands for "unbalanced load." Open the lid to the washer and redistribute the load if the "uL" display appears on the appliance.Redistributing the load should correct any imbalances in the washer and allow the washer to turn freely. Close the lid and press "Start" to restart the washer.

From what you are describing I feel your FAV6800A or FAV9800A has a Clutch malfunction see this post to get started on a DIY repair Clutch Fix.

The classic failure is the machine tries to spin up the wash basket starts banging from side to side then errors out with an unbalance error of dC or uC. Is that your failure scenario?

See if the post I link you to will help. Post back if you have any questions……..Rich

Some other handy links; The Service Manual for reference. Sears Parts Direct for reference.

HI There
Try this even tho you said it's balanced. Sometimes it looks like but a slight unbalanced can cause this problem.
It's noisy Most noises from a washing machine occur during the spin cycle. If you hear loud thumping during the spin, the load of clothes may have become unbalanced. Stop the washer and redistribute the clothes, then re-start it. Repeat these steps if necessary.
Let me know how this goes and thank you for writing to fix ya.
Best Regards Richard