If your sewing machine takes off on it's own accord even though you're not using the foot controller, then there may be a problem with the capacitor in the foot controller.
This particular foot controller is for a Singer 700 series sewing machine.
If the capacitor fails it can cause the machine to run by itself.
Generally this is caused by a failing capacitor which causes a direct short across the foot controller, causing it to run at full power.
I show how to get into the foot controller to access the capacitor and how to remove it. Once removed the short circuit is also removed, therefore fixing the immediate issue.
It's a good idea to replace the capacitor but if you need to get some sewing done, you can use your machine with it removed.
I would recommend replacing the capacitor as soon as possible as it's purpose is to suppress noise on the mains and can also cause issues with arcing in the foot controller.
This controller has a 1 microfarad, 275V capacitor installed which is removed. The capacitor is a common off the shelf item and can be supplied and installed easily.
Index:
0:00 - Introduction
0:49 - Electrical safety warning
1:08 - Opening the foot controller
1:35 - The capacitor
1:44 - Removing the capacitor
3:38 - Closing the foot controller
4:56 - Conclusion
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5 авг 2024
