Viking rose 609 model foot pedal will not work

SOURCE: Viking 1+

Your foot pedal plug is loose or possibly unplugged. You could also have a piece of fabric or thread that may be caught under the plate or around the bobbin. Remove all lint and oil the machine making sure the foot pedal plug is tightly in the machine.
Zelma

SOURCE: Husqvarna Viking #1 use same foot pedal as the #1+ ???

Yes it will work, you can go ahead and purchase it.

SOURCE: husqvarna viking 425

Try ebay or contact your local authorized Husqvarna Viking dealer. You can find a local dealer from the Husqvarna Viking website - http://www.husqvarnaviking.com/us/

SOURCE: 1002LCD Husqvara Viking Serger Frozen

If you can't turn the handwheel on the side at all you need to be very careful. If the two loopers are crossed and you force the machine you will be looking at a rather expensive repair bill. Open the front cover and do a visual inspection, making sure nothing foreign is inside the machine. If the handwheel turns easily and the only problem is electric, check the front cover. If it is not closed all the way the power to the motor is cut off for safety reasons. Hope this helps.

SOURCE: My Viking 5710 starts to sew without any pressure on foot pedal

Mine does the exact same thing. I think the problem might lie in the cord to the foot pedal. The cord packs into the foot pedal for storage, which forces the cord to to remain bent during storage. I believe the wires in mind became damaged and broken so I took it apart and reconnected the wires at the spot where the connector meets with the wires. But I still don't leave it plugged in if I'm not using it, it could be a fire hazard.