How do you get the SP3015X20AZ set up for 115v use? How do I hook it up? Thank you Rita

You might not be getting enough amps for the larger motor, thus it overheats and the automatic shutoff kicks in. Call an electrician.

Friend had similar problem... Clean filter, added earth, primed pump and sound went away and had great flow... If not, possible impeller problem..

let the air out of the filter as you try to start, this makes it hard for the pump to pick up the water. i would check the impeller and shaft seal,and basket for cracks, if the basket is cracked 99% of the time the impeller is plugged ..shaft seal there is is one one ebay with how 2 for around 10 bucks SMART ! PRIME the pump after a repair !!

Sounds like the thermal protector for the motor is tripping. This means there is a problem with the motor overheating.
It is a self resetting switch so when it cools off enough the pump will come back on. It also means you probably need a new pump.

Remove the back of the pump housing ... inside you will find the 110 volt connection place.

If your pump is on a dedicated line (as it should be) run it on 220 VAC ... To convert your line from 110 to 220 all you need is a double pole breaker of the proper amperage ... take the white wire presently on the ground bus bar and put it on the other side of the new double pole breaker. Then you will have 220 ... and you will save a few bucks on electricity.

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

When it shuts off, is it tripping a GFI or breaker or shutting down due to heat?

How did you connect the other two wires? Is it wired to a 115V or 230V system? It will run on a 115V system even if set for 230V but over time it will overheat and behave as you describe. If it is set for the proper voltage (i.e. – the setting matches the voltage present) you will need to check line voltage at the motor terminals to ensure the motor or supply lines are not dropping the voltage to low causing it to overload and shut down.

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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

My problem is with a roper double wall oven not a micowave. When turning the top oven on I receive a F-5 signal and the oven does not turn on. I misplaced my manual hoping you can solve this problem or send me the manual.
Thank you,
Rita

E-mailing you the info I am finding