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Sewing Machine Constantly Runs When Plugged In

I have an old, just new to me, White, model K209, sewing machine. I have plugged it in and it just constantly runs fast. The peddle is not pushed in, just wondering if I am missing something obvious? The needle is going up and down. I just don't want to burn the motor out while trying to figure this out. Thanks for any help.


By S.D.

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January 26, 20150 found this helpful
Best Answer

You have a short in there somewhere - could be in the foot pedal or inside the machine near where the foot pedal connects to the machine.

This isn't a home fix - you need a qualified repair tech to do this to prevent accidental electrocution. Please, take the machine to the shop, and do not run the machine until it's been completely checked out and repaired.

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January 28, 20150 found this helpful
Best Answer

Many of the old sewing machines had a two part wiring system. The cord that plugs into the wall leads to a powerblock that has 2 outlets, then the outgoing cord goes to the foot pedal that controls the amount of electricity that goes to the machine. This may be transparent to the user, because in the case of the knee controller, it's underneath a cover where it can't be seen.


The machine motor plugs into the outlet connected to the foot pedal wires and the other outlet is direct current for the light. If the machine is wired directly to the wall, there won't be any speed control. It will run full throttle. So if you have a controller block and plug the motor into the light outlet instead of the motor outlet, you will only get one speed without control. Then if you plugged the light into the motor outlet, the light would be controlled by the pedal.

You can't run a motor directly from the wall outlet. There has to be some sort of controller between the motor and the wall. Either a foot pedal, knee control, or even something like you use on a model train.

The first answer was correct. If you can't clearly see what the issue is, you should take it immediately to the nearest sewing machine repair shop. You can get a severe shock and or burns by plugging it into direct current. They will know what to do at the repair shop. The old machines are all wired very similarly. If the gear is there and you're just doing it wrong, they can set you straight very quickly and for little to no cost. Good luck and I hope this helps clear it up a little.

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January 23, 20150 found this helpful

Not sure what the problem may be, however, your best plan is to take it to a repair shop. Perhaps the prior owner sold it because it had the problems you now see.

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November 18, 20170 found this helpful

The plugin is reversed, switch plugins around. I had the same problem, fixed as soon as I saw the picture.

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