I once fixed sluggish doors the really easy way.  Remove the doors, then use a Q-Tip (cotton bud) moistened with Windex (or your cleanser of choice) to thoroughly clean the top and bottom slider tracks.  Then spray silicone lubricant into the tracks.  I insert a very thin tube into the nozzle to prevent spraying where you don't want to.  Put the doors back on and you're done.  With a little luck they'll now slide smoothly.

Ok thanks guys i now got it open in the front, and what i can see is nothing really broken on it, i will do as MediaBobNY suggest and clean it carefully and then put som lubricant on the two white wheels and the tracks.

The picture shows what i see.

Login to view image

Most of the times when doors are not running smoothly is because the doors are not aligned properly.

You can fix that by adjusting the string clamps inside the unit on the top and bottom. Therefore you have to remove the PSU unit to get acces at the bottom part. I once made a thread how to do that but can't find it anymore

Login to view image

Login to view image

I fixed it!

The thing with lubricants did not work but then I tried the adjustment Leslie suggested and it worked perfectly!

Thaks alot for your help guys!

😁

I fixed it!

The thing with lubricants did not work but then I tried the adjustment Leslie suggested and it worked perfectly!

Thaks alot for your help guys!

😁

Told ya, enjoy! :-)

here is two videos before and after.

BEFORE:

http://www.flickr.com/photos/eliasljunggren/10306824946/

AFTER:

http://www.flickr.com/photos/eliasljunggren/10306749824/

To me it looks as you still need to replace the driving belt.

Hello Max,

I have a problem with the doors. They do not close or it takes a long time to close.

I know there is a sensor behind the black plates, but I do not know how to remove

the black plates. You changed the wires for the glass doors so you had to remove the

plates. I hope You can tell me how to do.

Regards Karel.

karelbeunk@gmail.com