Knocking during wash and spin cycle

Does the drum wobble quite a bit or does it look normal? If it's wobbling it could be the drum casing knocking the internal structure. Might need a new drum spring if this is the case

drain or drain pipes blocked
bearings gone

could be a bad counter balance , u can remove the front panel and run a spin or wash cycle and listen to where its coming from so u don't have to replace all the balancers. on some models theres a heavy ceramic weight at bottom that at times goes bad and throws it off balance, just run it and look where noise is coming from

bad counter weights?

Most likely the cylinder is misaligned, if its still under warranty, send it in, if not, this is probably the most expensive fix on a washer. Wouldn't be unreasonable to get a new one.

Check if machine if leveled . Or maybe ,check shock absorbers .

replace the balance springs from the bottom of the tub to the frame there weak and letting the tub rock

If your machine is making louder than normal noise during spin it could be the failure of the basket. Mine is just under three years old and the basket became looser than normal in the tub. I diassembled the machine...a lot of work...and found the aluminum casting around the shaft and bolted to the basket had rotted away. It looks like it was attacked by the bleach since I had my water checked and its pH is fine. It is likely the root of the smell we have experienced with our clothes when they sit too long in the machine. I spoke with GE and they gladly agreed to replace the parts needed but it is a ton of work to install them. I plan to treat the new part with some zinc chromate if I can get some before the parts arrive. See the picture if it attached correctly.

Hi,
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.

good luck.........

Ours started knocking several months ago and then progressed to a high pitched sound when in the spin cycle. I manually turned the drum and heard and felt a bearing roughness. I lifted the drum assembly and felt a fair amount of play, which I think the initial knocking noise came from. On the sears web site a new rear drum mount cost 293.00. Today we went and bought a LG model wm2455hw at Home depot, on sale until 2/20/08. I couldn't see paying to repair a machine that only lasted four years.