Pfaff 461 sewing only reverse, how can I fix it?

Question edited for clarity.
Question moved from Computers category.

The worst thing to do with sewing machines is not use them. Regular use and 2 yearly cleaning and lubrication by a dealer is the way to go. Something is probably gummed up

There are some ideas in the link and the videos.

https://www.google.com/search?q=Pfaff+Performance+2054.+The+reverse+stitch+is+not+working

The only place you will get a part like that is direct from Pfaff or an authorized repair centre.

Sewing Machines - Pfaff

https://www.pfaff.com > en-US > Machines > Sewing
PFAFF sewing machines provide the perfection that you and your creativity deserve. From beginning to end a Pfaff sew machine will produce unparalleled ...
‎Quilt Expression 720 · ‎Performance Icon · ‎Passport 2.0 · ‎Select 4.2

• 
  

  Machines - Pfaff

  https://www.pfaff.com > en-ca > machines
  The result is a feat of technological excellence destined to exceed the aspirations of today's sewing, quilting and embroidery artisans.
  
  NORMAL parts come from here
  
  https://www.sewingpartsonline.com/pfaff-7570-sewing-machine-parts.aspx?index=1
  
  ..

http://www.pfaff.com/SiteMedia/PFAFF/Products/Machines/creative-line/creative3_0/Manual/creative_3_0-manual-EN.pdf

It probably needs to be oiled. If you can access the internal mechanism that is connected to the reverse button give it a small drop of oil.

PFAFF Mail-A-Repair Garry's Machine - YouTube

? 10:15
www.youtube.com/watch?v=x1CmpFRr8OU
Apr 20, 2010 - Uploaded by kennsplace Ive been working on sewing machines for the last 18 years. ... a used pfaff 2022, and it works great, except that reverse does not work. When I ...

Yes, and probably No
Take it for evaluation and quote

if you can take the pfaff back and tell them what its doing and have them fix it or get another sewing machine..

it's possible that the reverse is jamed or broken & the machine needs to be checked

Take it back to the Dealer.( He probably has a guarantee on the work he did). Let him show you how it works. If he won't do this then it is definitely time to find a more reputable dealer. If you paid for a repair it should have been repaired.
sewman7

Unfortunately, this is most likely a computer board issue and there's just no way to predict if/when a board will go bad.

Your only option at this point is to take it to an authorized Pfaff dealer. If the person who serviced it was an authorized Pfaff tech, take it back to them. If not, do take it to a Pfaff dealer - non-Pfaff authorized techs are not trained on the machines.

Sorry I can't give you a simpler answer, but until this is corrected, your machine won't work properly.

Best,
Kim