DW734 Planer is screeching and sparking

Good evening everyone. First I just wanted to say what a great site this is and appreciate everyone sharing the great content and wisdom. Much appreciated.

So I searched the forums for a hot minute and couldn’t find any related threads to my problem. I have a DW734 thickness planer which is about 2.5 years old. I’m just a hobbyist so it hasn’t been used that much. Over the weekend I was planing down some myrtle wood and after about 15 seconds it started to spark in the motor housing and make a horrible screeching sound.

First thought was to check the brushes, change blades, clean rollers, wax the bed, and clear out all dust. I discovered a lot of wood chips and buildup everywhere which made me think that was the reason. After reassembly it ran great for about 10 seconds and then the screeching started again. No sparks this time. It still runs but the sound is not normal and I don’t want to cause any further damage

Tonight I disassembled everything except the motor housing (I removed the power switch and cleared all the dust out…there was a lot). The only other thing I didn’t remove was the cutter head from the head. All the bearings look good and spin freely. The roller bushings also look fine and show no irregular wear and tear. The belt looks fine and is not cracked the motor pully spins free as well. I carefully inspected every part and nothing looks broken which makes me believe its something internal to the motor. I don’t know how remove the outer housing for the motor but I wouldn’t know what I’m looking at anyways. Any ideas what it could be?