What causes a pool pump motor to overheat - Emerson Pool & Spa

motor is overheating the thermo is shutting it off for safety need a new motor or pump sometimes the whole pump is cheaper than fixing the old one

The short might have caused overheat and damage to the electronics.... contact hayward

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

it sounds like there may be a short in the pump. this will cause it to overheat and trip the thermal overload. it may be time for a new pump as this is usually cheaper than fixing it

Superpumps have been a workhorse in the industry for decades. Your results are highly unusual. The motors that run these pumps have bee manufactured by Century/Magnetek and A.O. Smith for the past 20+ years. These same motors power the vast majority of pumps built by a wide range of pool pump manufacturers. (They are not Hayward specific)
You may want to get a second opinion from another electrician, or call out a pool pro to check out the installation to see what could be causing these frequent failures. This is WAY abnormal.

Verify that your voltage is correct, then check your amps. It sounds like you have a short in the windings causing the motor to overheat. This usually mean replacement. (the repair would be almost as much as a new motor)

How long has it been since you have the new motor installed? Did it work after the job was completed? Very possible that the starter circuit has failed, usually when it comes on and runs but overheats and stops, the starter and run circuits are both engaged and that causes it to overheat. If you can read the wiring diagram on the motor and make sure it it correctly wired, you may save it if it is a simple loose wire. Otherwise it sounds like you will have to have whoever changed it come back and do a warranty repair.

you may have a problem with supply power causing the motor to overheat and trip it's internal high limit. You could also be developing a short in the motor winding, however, you would probably be blowing the start/run capacitors if you have winding problems. Make sure the supply power is adequate, three horses require some heavy amperage.

the pump is not functioning correctly, it should run constant, and is only controlled by the switch. are you by any chance running this pump off of an extension cord, because that can cause this symptom. an large draw such as a pump compounded by the voltage drop of the cord can cause the motor to overheat and shut down sporatically.

Loosen the motor and impeller from the pump by backing off the large plastic nut and take that whole section to an electric motor repair shop for inspection. If the motor is salvagable, they can quote the repair or replacement.