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Power drive unit seems to fail after a few minutes

Air foot control unit seems to fail after a few minutes use.

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If this is an old Elna, (you don't mention either make or model), the rubber in the foot pedal may well be perished and leaking air....take the unit and machine to an Elna dealer for their always was a rather silly idea for the foot controller as this was bound to happen decades later.

Posted on Sep 06, 2009


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The sewing machine now only operates at a very slow speed.

assuming this is a foot control unit and nothing is obstructing the pedal from making full moment after running the machine for a few minutes does the motor feel like it is getting too hot or even give off a slight smell or is the rubber belt that joins the motor to the machine under enough tension and not slipping as this needs to be adjusted so it has the right amount of tension. If the motor is getting overly hot and smells it might be a sign it is about to fail ! the foot control can often wear out causing problems like this and depending on the make and brand many can easily be tested in other machines that can accommodate the same pedals maybe a relative or a friend has a similar system that you could test your foot control on ?

Nov 25, 2017 | Sewing Machines

1 Answer

No power going into the foot pedal, when i step on half bubble nothing happens

The foot controls with the air function tend to fail, usually because they develop a leak. You may be able to get a replacement from your dealer.

Sep 10, 2017 | Sewing Machines

2 Answers

What would cause my Kenmore sewing machine's light to turn on but the motor seem to have no power?

The wiring for the older Kenmore is simple. The light switch completes the connection to the light. If the foot pedal has failed or connection loose where the wire attaches from the foot-pedal the motor will not run.

Also if the brushes in the motor are worn or failing to contact the motor internally the motor will not run.

With light on and pedal partially depressed attempt to activate motor to determine if brush connection are faulty. If the motor reacts at all the brushes will likely need to be replaced.

No success borrow a foot pedal from a friend or sewing center to determine if the pedal control is faulty.

Hope this helps?


Oct 15, 2016 | Kenmore Sewing Machines

2 Answers

Is it possible to change the fuse in a sewing machine?

the only fuses ive ever seen inside a sewing machine was located inside the foot switch assembly and ive taken apart a few dozen now , but now ive seen quite a few broken power cords and sockets in that few dozen , seems the power cords sure take a beating on these ?

Jan 14, 2016 | Sewing Machines

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Why is there no drive to my machine.

Try checking the clutch on the motor or maybe a faulty drive belt

May 11, 2014 | Brother SE-270D Computerized Sewing...

1 Answer

My 7570 will not run, the light is on but it will not sew

Disconnect the foot control. Turn the handwheel to see if it will turn over freely. Next, power up the machine and press the 'needle down/up' button a few times.. If that works, things are looking promising and the issue is most likely the foot control. If you are able to try your foot control on another Pfaff. If your foot control is not working, most likely it will be the carbon tracer pins inside the foot control. These can be purchased for a few dollars. Skill level to fit them is moderate..... you may break the pins if you do it incorrectly. Alternatively, get a quote for a repairer to do it. Takes 5 do.

Apr 09, 2014 | PfaFF Tiptronic 2030

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My Elna Air Electronic (TX 57) suddenly stopped responding to the foot control. The machine moves when I use the fly wheel, so obviously it is in working condition. I also noticed that the foot control...

did you push the plug the into the machine/ switch/ coket / open foot pedal / power off take out the plug and check with the multimeter continuity testof foot pedal oneterminai and other .i must run

Mar 28, 2017 | Sewing Machines

1 Answer

Bernina 807 runs immediately power switched on . Tried two different foot controls - so do not think that is the issue. any solutions? Ideas welcome. Thanks Geoff

There is a supressor that has failed, usually found in the foot control, some models have them near the power inlet and motor.....sounds like yours is the latter.
It usually smells like burning plastic/electronics.
Remove it or have a qualified person do it for you if you are uncertain, this is lethal voltage we are talking about, and if you do not know what you are looking for, why risk it for the sake of a few dollars ?

Aug 26, 2009 | Sewing Machines

2 Answers

Runs full speed without pushing the pedal!!!

  1. it sounds like the filter capacitor has failed. the capacitor is usually located inside the foot control but may be inside the machine itself.
try taking the foot control apart (dis-connect from power first). you should see a component rectangular in shape connected to the wires in the foot control. dis-connect this component (it will not adversely affect the running of your machine) and then re-assemble the foot control and test. if this did not fix the problem see a tech.


Apr 12, 2009 | Singer 2732 Mechanical Sewing Machine

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