Noisy, wobbly Asko dryer

It is so common that the washing machine can make terrible noise in many ways and is a common fault. In all occasions it is important that your observation is most important and so is vital to the identification /rectification and solution. If you have noticed that machine is vibrating when it is running then the motor /drum suspension has to be inspected. Since these fittings are located on the underside of the machine it is important that you look for the noise with a good inspection lamp. Manually turn the motor and drum and listen for the noise, if so the motor bearings, the drum agitator shaft and fittings must be checked. Also the suspensions which include the shock absorbers and springs, the body clamps must be checked to be in correct alignment and not changed in position. Tightening of the mounting is also very important. Finally in most cases a drop of OIL or smear of grease on the moving parts cane solve most issues.
Check this link :
http://www.espares.co.uk/advice/washing-machines/a/7/1210/wobbly-washing-machine-or-tumble-dryer.html
How to Prevent Washing Machines Spinning Noisily

It sounds like one or both of the suspension struts has either broken or come away from it's mounting. Inside the washing machine there are a couple of concrete blocks used to counter balance the motion of the drum when it is turning. The suspension struts (just like a cars) dampen the effect so that the machine does not wobble all over the place. The struts (two normally) are firmly anchored to the washing machine chassis at the bottom and the other ends are attached to the drum itself, usually on either side. Check that these struts are not damaged and that the mounting bolts etc. are not loose or missing.

I dont know whether you have secured the dryer to stop it from moving if it shakes about you need to secure it and make sure it is level(eg the floor is level or the dryer is level and all the leg screws are down and even so it doesn't wobble about.

The more the dryer wobbles about the drum inside will wobble inside the casing and it will break the things that hold the drum in place ,sound like that has already happened.but secure it in place and see what happens.

It is so common that the washing machine can make terrible noise in many ways and is a common fault. In all occasions it is important that your observation is most important and so is vital to the identification /rectification and solution. If you have noticed that machine is vibrating when it is running then the motor /drum suspension has to be inspected. Since these fittings are located on the underside of the machine it is important that you look for the noise with a good inspection lamp. Manually turn the motor and drum and listen for the noise, if so the motor bearings, the drum agitator shaft and fittings must be checked. Also the suspensions which include the shock absorbers and springs, the body clamps must be checked to be in correct alignment and not changed in position. Tightening of the mounting is also very important. Finally in most cases a drop of OIL or smear of grease on the moving parts cane solve most issues.

Check this link :

http://www.espares.co.uk/advice/washing-machines/a/7/1210/wobbly-washing-machine-or-tumble-dryer.html

Depending on whether the dryer has been leveled it could be simple or an indication your drum bearing is failing and allowing the drum to rub. Start off leveling your dryer and see if that helps. If not, try turning the drum by hand and see it you can detect a wobble in the drum rotation.

Check the suspending springs inside. These are attached to to the drum jacket. If the springs are OK check whether the drum is wobbling. Turn by hand and check. Check ball bearings last!!!

Could be loose bolt @ back of pulley or Drum bearing gone which makes drum very noisy on spin expensive to fix..

you probaly have problems with rollers in front of the drum.

I'll bet the drum is cracked.

Yes....this will throw than fan unit out of balance almost the same way the tires on your car get out of balance. The wobble effect at high speed makes tons of noise.