Kenmore 90 series washer sounds but doesn’t agitate

Washer Repair
1

Brand: Kenmore
Model Number: 110.28922790
Main Symptom: makes buzzing sound instead of agitating
What happens & when: after filling with water, it won’t agitate and makes a buzzing sound

Error Code (if any):
Parts or tests already tried: I have replace the transmission, clutch, coupler, capacitor, and motor. The agitator dog looks good. It has power. It fills with water. It spins perfectly and pumps water out fully.
Photos / video link:

What else could be the problem? Please help if you can.

2

Is the buzzing noise coming from the timer? If not, from where?

3

Thank you so much for such a quick response. I went to try it just now to see where the buzzing sound comes from and to my surprise, the agitation is working!!! I installed a new motor last night and a new capacitor two days ago. It wasn’t working last night after the install but this morning it’s back operational now. Wow, I have no idea why it didn’t work last night but is OK now. Did the capacitor need to charge overnight? Hopefully the agitation problem is gone for good.

4

No, the capacitor would not need time to recharge. Keep an eye on it, they don’t normally heal themselves!

5

Will do! I really appreciate the advice. If it does reoccur, I’ll come back here with the answer to your question of where the buzzing sound is originating. From before, I recall it seems like it was coming out of the back side of the unit and not the motor in front.