Washer unbalanced apparently

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.

Possibly unbalanced load or machine not quite level,try a cycle without clothes,if it still the same adjust machine level,hope this helps!

First thing I would do is replace the belt as the old one may have streched

The spin cycle is used to rid the water by centrifugal force. As the tub spins, the water iis forced out of the clothes. The banging noise comes from the weight of clothes being on one side making the load unbalanced. The machine will absorb some minor unbalancing. If it gets real loud & the machine starts dancing, shut the machine off by raising the lid, when tub stops, rearrange clothes.
Louie Almond

Clean your filter

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. 

A common problem with noises from washing machines has been the under wire that may come out of small clothes. In the washer they can get stuck in one of the inner basket holes and make a scrapping noise, they can actually make there way into the pump and jam the pump, or make a terrible noise when the pump is running. Grab a flash light and have a peek inside the washer for this. Front load washers seem very common to this happen! If the tiny cloth  is showing signs of fraying, may be best not to wash it in the washing machine, replace the cloth

A common problem with noises from washing machines has been the under wire that may come out of small clothes. In the washer they can get stuck in one of the inner basket holes and make a scrapping noise, they can actually make there way into the pump and jam the pump, or make a terrible noise when the pump is running. Grab a flash light and have a peek inside the washer for this. Front load washers seem very common to this happen! If the tiny cloth is showing signs of fraying, may be best not to wash it in the washing machine, replace the cloth.=======
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.

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.

Try running it with just vinager and water no clothes.
Just put about a cup of vinager in it and wash cycle and another cup in rinse cycle.
Vinager is a better disinfectant and odor eliminator than bleach.