I have an A.O. Smith type cx FR.y56y 1.0 HP motor on my sta-rite filter pump giving me problems.
I notice the pump was not running. So I shut off the timers, cylced the breakers, pump motor still did not start. I have a Jandy service panel that controls all the switches/breakers for my filter pump, water fall pump, spa pump, and cleaner booster pump.
I turned on the switch (in service mode at the panel) and the pump motor would bump a bit but not start. Turn off, then on, nothing. Pump motor turned freely by hand so I put a new capacitor on it, no change. I bumped the switch off and on a few times, the pump motor would start, run for about 2-3 minutes then shut off. No breakers were tripped, the light at the swithch panel showed on, and I checked the voltage at back of the pump motor, 120 v on the black wire and 120 v on the red wire.
So I powered down everything and pulled the motor and took it to the local pool store to be checked. They benched tested it and said it was fine. I reinstalled the pump motor yesterday, same results. If I bumped the switch a few times the pump will finally start. It ran for 2-3 minutes and quit again. I checked all voltages again and all seemed fine. I got the pump motor to start again and this time it ran for 5 hours. Then I manually shut it off. It would not restart again.
So I am thinking it has to be the pump motor. I show voltage at the back of the motor and the motor is not spinning. Odd that it is not kicking breakers. I could try hooking up the motor to one of the other pump switches in the service panel to verify that it is not the switch, not sure they are 230 volt. I am thinking it is not the switch becacuse I see 120 v. at each wire on the back of the pump.
So I have convinced myself I need a new electrical motor. Any Opinions based on similar experiences?