Husqvarna Classic 100 sew machine , pressed reverse button, now it sew reverse only!!! Please help! i pressed, i hold, turned off and on, nothing....... any ideas?

Question edited for clarity and correct order of make model.
Question moved for Cars and Trucks category.

Unfortunately there isn't one. Owner manual only. Service agents are factory trained, and have online resources, but generally they already know their way around inside all machines.

https://www.google.com/search?q=Husqvarna+Viking+Classica+100+service+manual

If it is stuck in reverse, there is help on Fixya from 2012.
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Press on the center of the stich length dial.

https://www.manualslib.com/manual/1632982/Husqvarna-Viking-3600.html?page=18#manual

If it continues to forward stitch while button pressed, see following repair video.
https://youtu.be/n_ue2C3iRFk

Owner's Manual only.

https://www.google.com/search?q=Husqvarna+Viking+Classica+100+Service+manual

Check out videos 3 and 4.

https://www.google.com/search?q=Husqvarna+Viking+Classica+100+reverse+not+working

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How To Reverse Stitch On A Singer Sewing Machine Correctly

Step 1. Press the reverse button

• Refer to the Singer manual of the specific machine you have
• Please find the button with the U-shaped arrow, typically at the front of the sewing machine, or check your manual for where it's located
• Press the reverse stitch button and start sewing

Step 2. Start sewing

• Hold the material as the sewing machine sews backward and stop it manually by taking your foot off the pedal
• Deactivate the reverse stitch function by pressing the button again
• Be careful not to hit the thread plate to avoid bunching
• If you accidentally press the wrong button, turn off the Singer sewing machine and turn it on again to reset

If, the machine has been sitting, take a hair dryer and heat where the reverse lever is. Try this, it worked on mine. If, that does not work, try cleaning and oiling your machine according to your manual.

Sounds like a bind in the slide block which you get to from the back. It is near the hand wheel.

Hi,Try this,switch off machine,press in reverse and pivot button together,switch on,release buttons and press up/down needle button,this brings up calibration screen.With a plastic stylus or something similar(not metal) touch in centre of each cross,they should turn green.Switch off and on again. This will calabate machine the screen.
Hope this helps

Put on the C foot. Select the buttonhole stitch. The machine will start sewing in the bottom left corner of the the buttonhole. Sew the length that you need, press and release the reverse button and sew the right side of the buttonhole. When you get back to the bottom, press and release the reverse button again and the buttonhole will be finished and the thread will tie off and the machine will stop. If the buttonhole is what you want, press and release the Stop button and the machine will repeat this buttonhole as many times as you need until the machine is turned off or the Stop is pressed again. When repeating, you need not press the reverse. Just press down on the foot control and continue until the machine stops by itself.
If you don't like the first one, just sew another one using the reverse button to set the ends.

The reverse button works by hitting it twice in succession to make it stay on (it lights up), and you turn it off my hitting it once again. If you just want to reverse for a little bit, you hold it down while you sew, then let go. Is the button lit all the time?
Having said that, it sounds like Nannayoyo needs to take her machine to a service centre - the electronics behind the button panel might need replacing. Is it possible the button is stuck in? Maybe phone a Husqvarna service person - not a sales person - and ask for advice.
Everyone - are your machines new? If yes, you need to go back to the sales centre straight away and get it fixed or replaced while you wait. If these are problems that have just appeared when your machine used to work perfectly, probably the best solution is to take it for a service. It might just be a speck of dust has settled on the electronics behind the panel and is causing unpredictable behaviour.

If you have located the reverse button and pressed it once - this should shut off that feature. If this does not, then I am afraid you are going to have to take it in to be reprogramed. Any local shop that is familiar with Husky should be able to help you out. Good Luck!