Washer buzzes but does not run

When I came to the washer because it was alarming, the tub was full of water, the timer dial was at rinse and nothing was happening. I pushed in the timer dial to stop the alarm. I don’t know if the alarm went off by itself or pushing in the timer knob stopped the alarm. I pulled out the timer knob to continue the cycle but nothiong happened. I then, turned the timer dial to other places on the dial like spin, or wash and nothing happened, except the motor buzzed at each spot I pulled out the timer dial. I don’t know if the washer completed the wash,drain spin cycles or if the washer filled up and did nothing more. Then I emptied the tub by hand. Then I turned the timer dial to wash and the water began to run. I stopped the water by pushing in the timer dial. Then I removed the water pump to see if it was blocked. It was not. I reinstalled the pump. Now I don’t know why the motor just buzzed and did not run. I don’t know what else to do. Can anyone help?