Question about Garden
I also might be something very simple. It might be that your bobbin winder is one. Some Berninas have a separate bobbin widing motor. isf the lever on the top of the machine is pressed to the left your bobbin winder will turn on even if you aren't winding a bobbin. Push it to the right and it will turn off..... and your humming should go away.
Posted on Apr 21, 2011
Generally humming sounds from electrical devices are transformers. If the machine has a transformer in it.. which is a device that changes the voltage stepping it down to a lower voltage or up to a higher voltage.. these transformers which are tightly wound coils of copper wire.. tend to hum.. same situation as an overhead fluorescent lamp fixture.. sometimes louder if the mounting screws are not tight or insulated with rubber washers.
Since the sound doesn't change.. my guess is that while in standby mode the current is still being supplied to this transformer..
I doubt you are doing any damage.. However the best thing you can do is check the voltage at the outlet to ensure you are gettting a true 110V and that the outlet is properly grounded. You need a ciruit tester to check for proper grounding.. they are inexpensive... but you will need a volt ohmn meter or similar device that can display voltage to check for proper voltage.
Low/improper voltage can be harmful to many eletrical devices.. So have it checked.
Finally..if the sufrace the machine is sitting on lends itself to amplify the sound.. vs. the surface you used in the states.. it would be much more noticable..
Best of luck
Posted on Apr 10, 2011
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Posted on Jan 02, 2017
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