Kasa Dimmer Switch - Hearing a faint buzzing/whirling noise

Kasa Dimmer Switch - Hearing a faint buzzing/whirling noise
Kasa Dimmer Switch - Hearing a faint buzzing/whirling noise
2021-09-05 20:56:33
Model: HS220
Hardware Version: V2
Firmware Version: 1.0.8

Is this anything to be concerned about? I can only hear the sound if I put my ear against the switch. So it's not very loud at all. I checked and re-tightened all the wires as well. It's connected to 9 canned ceiling lights in my living room. 

 

I hit restart on the switch and I noticed the buzzing stopping while the wifi was disconnected. When it connected to wifi again the buzzing started again. Also when I turn ON the switch the buzzing stops but when I turn it OFF, the buzzing starts again.

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