The machine will only run via the

Question edited for clarity.
Question moved to model category.

Try recalibrating the screen. Having said that, with the number of adverts for buying one, it looks like there is an issue.

https://www.google.com/search?q=Husqvarna+Designer+1+touch+screen

Power on the Designer 1. Press the "Reverse Feed" and "Sensor Pivot Foot" buttons simultaneously to enter the device's service menu. Press the "Cal" button on the display. Tap the "+" mark on the display to recalibrate the touch panel display.

How to Troubleshoot a Husqvarna Viking Designer 1 - eHow

Service Manual

Husqvarna Viking Designer I Service Manual [Page 10]

ManualsLib https://www.manualslib.com > ... > Service manual
How to synchronize the touch area of the touch panel with the symbols on the screen. Get into the service program of the machine.

The start/stop button won't work if your foot control is plugged in, or if your presser foot is up.

The start/stop button was pressed while the foot controller
was connected.

Disconnect the foot controller,

and then press the start/

stop button. Otherwise,

operate the machine by
using the foot controller.
Hope this helps.

Two things: make sure the foot control hasn't slipped under a ledge or cupboard and it can't raise itself to the complete "off" position (ask me how I know about this one LOL!); and does the Off button work to stop the machine? If the first, then your problem is solved already. If the second and the button on the machine does work as it is supposed to, disconnect the foot control and just use the On/Off button. It works for regular sewing as well as embroidery. Takes a bit of getting used to, but it will keep you sewing until you can get the foot control to a repair shop.

Not sure just what foot you have. Was it a genuine HV foot or a generic brand? Could you describe in more detail what the foot looks like and what it is supposed to do. There are lots of videos on YouTube showing how various feet work and you might find what you need there.

Are you sure you are not "double-pressing" the Start/Stop button? The machine might think you have said Go and Stop straight after? Try embroiderying using the foot pedal - see if that works for you. I guess you are aware that the machine will stop for thread colour changes. Do an experiment on any old piece of fabric - load the design and press the Stop button (not the one mentioned above, but the one of the left-hand side above Fix). The light should go out. This will eliminate the colour changes - the design will sew out in one single colour only. See if it keeps running and completes the design.

I would also "park" the embroidery arm, turn off the machine, remove the arm, replace the arm, turn machine back on and try again. Sometimes it just needs to start all over to get things back on track.

Try using the Start/Stop button instead. It works just like the food pedal. You might like to bring the speed down first or else it will take off like a rocket when you press the button! You hit the button again when you want to stop. Sounds like you might need to replace the food pedal - unfortunately an expensive item. Try taking it out of the machine, coiling up the cord, uncoil it and re-insert being sure to push the plug in firmly. Check along the length of the foot pedal cord to see if there are any cuts in the cord. If there are, it will definitely need replacing.

TRY THIS, itma not be your model, but should help Title:
How do I wind the bobbin?
Pre-tension disk Bobbin winder shaft Bobbin

1. Pull up the spool pin as far as possible, and then put a spool of thread on this pin.
2. Pass the thread around the pre-tension disk. Make sure that the thread passes under the pre- tension disk.
Pre-tension disk Pulling it in as far as possible

Caution If the spool of thread is not in the right place, the thread may tangle on the spool pin.

3. Pass the end of the thread through the hole on the bobbin from the inside of the bobbin.
4. Put the bobbin onto the bobbin winder shaft and slide the bobbin winder shaft to the right.
5. Turn the bobbin clockwise, by hand, until the spring on the shaft slides into the groove of the bobbin. Spring on the shaft Groove of the bobbin

6. Turn on the sewing machine.
7. While holding the end of the thread, gently press the foot controller or press start/ stop button (for models equipped with the start/stop button) to wind the thread around the bobbin a few times. Then stop the machine.
Note

• If the sewing machine is to be operated using the foot controller, connect the foot controller before turning on the machine.
• When the foot controller is plugged in, the start/stop button cannot be used to start sewing (only for models equipped with the start/stop button).

8. Trim the excess thread above the bobbin.
Caution Make sure you follow the instructions carefully.
If you do not cut the thread completely, and the bobbin is wound, when the thread runs low it may tangle around the bobbin and cause the needle to break.

9. Slide the sewing speed controller to the right (to set the speed to fast).
(For models equipped with the sewing speed controller.) Sewing speed controller
10. Press the foot controller or press start/stop button (for models equipped with the start/stop button) to start.
11. When the bobbin seems full and begins spinning slowly, take your foot off the foot controller or press start/stop button (for models equipped with the start/stop button).
12. Cut the thread, slide the bobbin winder shaft to the left and remove the bobbin.
13. Slide the sewing speed controller back to its original position (for models equipped with the sewing speed controller).


Caution Not winding the bobbin properly may cause the thread tension to loosen, and may break the needle.
Wound evenly Wound poorly


Note

• When the sewing machine is started or the handwheel is turned after winding the thread around the bobbin, the machine will make a clicking sound; this is not a malfunction.
• The needle bar does not move when you slide the bobbin winding shaft to the right.

If you have a start/stop button, yes you can use that instead of a foot pedal. Most viking designer models use a common foot pedal, so you might be able to find a used one.

There is no suppressor in the foot control of a 425. Only the control unit, which may need to be replaced. If the machine accelerates to full speed, it may have a problem with the "stop right" board which tells the machine whether to stop with the needle up.
You could have several problems, so go see a qualified Husqvarna repairman. You may contact Husqvarna customer service to locate the best one in your area.