How to fix a electrical motor humming not running. Pool motor, hot tub motor. air compressor motor.

This motor was not running but was giving me a humming sound.
I expected the start capacitor bad but another thing came out of this.
Hot tub pump.
Pool pump
Air compressor motor

[@BIGMAN8435]

Is normal to see arch at night ,from these pumps with the mechanical switch when turned on.

[@ArniAtlason]

No that is not normal. I would suspect the brushes are either stuck or not worn out.

[@bernhardwalzl3583]

Hi! I have the same problem. It seems stuck and doesn’t want to come back out by itself. I have to apply quite a lot of force to snap it back out. In the video I can’t figure out what you did to ease the movement? Juste wiggling with it a little? Any other idea what I could do in this case?

[@ArniAtlason]

I used á wd40 and did manually move it back and forward until it got loose.

[@ДобрыеОткрытки]

Hi my friend! Super!😍😍👍

[@ArniAtlason]

Thank you so much I really appreciate you.

[@mikeunger7364]

Thanks for the help. The 2nd song is awesome too btw.

[@ArniAtlason]

Thank yo so much for the comment, I really appreciate it.

[@carterbowe9964]

How's the ol f150 running?

[@ArniAtlason]

He is running good, just a little hiccup clogged fuel filter. I will make more video's later (life took over) Thank you for watching