Please forgive the ignorance, but I thought this might be a good place to ask this.
I recently purchased a Chinese clone ultrasonic cleaner. When plugged in and powered on (i.e., power switch turned on) there is a high pitched hum. From what I uncovered so far it would seem to be a 120 Hz hum. It is relatively low volume, but clearly definable. Again, this is without the utlrasonic or heating functions turned on, just power to the unit. I am assuming this is related to the transformer.
Is this something that I should worry about? Does it indicate an issue in waiting?
I recently purchased a Chinese clone ultrasonic cleaner. When plugged in and powered on (i.e., power switch turned on) there is a high pitched hum. From what I uncovered so far it would seem to be a 120 Hz hum. It is relatively low volume, but clearly definable. Again, this is without the utlrasonic or heating functions turned on, just power to the unit. I am assuming this is related to the transformer.
Is this something that I should worry about? Does it indicate an issue in waiting?
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