Trying to change new Hayward Super Pump from 230v to115v Know to move plug w/the arrow but L2 prong gets in the way. Tried turning plug so white wire connects to A; pump only hums when you turn it on.

Try running the motor in the dark. You may find it arcs to the chassis of the motor and that is your culprit. Had same thing on a hot tub 10 years ago. The professional techs tried everything for me. i finished the last part at 10pm and turned the motor on and saw the arc then trip the gfci. Good luck

don't mater its ac there is no polarity

black wire and white wire to L1 and L2. green to ground screw.

Shouldn't be a white line on a 220 circuit but some people use them. Red and Black is the standard. If you are sure they supply 220 VAC, which I would verify, it doesn't matter which one goes to which terminal. 120 or 3 phase matters. If you have a multi meter, put the red lead on the black wire and the black lead on the white wire. If you read 220, good. If you read 120, it will make a difference.

Thank you for posting your question here on Fixya.com.

It will not matter which line goes to which post. Just put one to L1 and the other to L2. As for which voltage to set the pump for, you set it to match the voltage present on your lines you are connecting.

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John

open back you will see the bars to hook to it should show which is the right side 3wire only for 115

If you look closely, you should see a small arrow on the black plastic piece on the terminal block(jumper). That arrow lines up with either the 115 or 230 mark on the white terminal board. Make sure it is aligned with the 115.

Then put you two line wires on. It does not matter which wire goes to line 1 and line 2, just be sure you DO NOT put them both on the same terminal. A plastic divider usually seperates the two line connection terminals.