Is there any way to test a breaker?

adriver said

My advice.
Swap the motor to 230. Connections are on the motor.
Change the breaker to 230.
Wire is already there, right?
You are cutting your current draw in half.
Change the receptacle and plug to do it right.
Your motor will thank you for it.

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Yeah, my advice above was for this. I assumed it was already wired that way. But if it is already wired for 120, the high magnetic breaker may be all that's need to fix it. But the higher voltage way is the way to go if he already has enough wires run to the outlet box to support it.