Knocking sound in the spin cycle off balance.

out of balance
replace the tub support rods and level the tub

Depending on model, Probably tub bearings are bad.

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

Good Morning Friend,

I understand your Electrolux washer, model# EWF1087, is making knocking sounds during the spin cycle. In researching your model number, I show that your appliance was manufactured in Australia. If this were manufactured in the U.S., I would suggest making sure that the load was balanced. Balance your wash load and if you are still having trouble, I suggest contacting the manufacturer in Australia. Hope this is helpful.

-Best Regards-
WP

this is usually an indication that your tub is off balance you need to stop the cycle let is come to a stand still and once it has stopped spinning then shift the clothes around to evenly distribute them. or remove some as it may be over filled and will not wash well if it is over filled. off balance can also mean over full so if it continues to knock then remove some items until it stops knocking

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

sometimes the agitator gets loose, causing the drum to sway to far all over the place.make sure its tight , remove the softener dispenser (manual nut), then tighten the metal nut that holds the agitator down

This may help. There is a plastic tab at the bottom back center of the washers (Mine is clear Plastic). This is designed to hold the Tub i n place when it is shipped. First try turning this 90 Degrees, until it is noticable loose. If that does not fix it, you can actully pull the plastic thing out with pliers, as it serves no purpose once the washer in place. I turned mine and the problem seemed to go away so I did not pull it out, but the guy at the store said I could pull it out if I wanted to.

Give that a try

Most likely, your pulley is coming off, my pulley mad that knocking sound for a year before the belt fell off and I had to address it. see the previous post on how to fix this issue.

there should be a rubber washer with the bolt. if it is missing the bolt may back of during agitation. also the threads on the transimision may be stripped. Some Green lock tight found in most hard ware stores should help. the knocking noise is probably due the agitator coming loose.