The pump motor tripped the circuit breaker while on a timer. I re-set the circuit breaker and turned the pump on. It hummed but would not start. I took the pool pump motor to a local pool store and they bench tested it. They said it worked fine. I brought it home, hooked it up and it ran for 24 hours. I turned the pump off and cleaned the filter. When I turned it back on it agin it hummed but did not start up. What do you think the problem is?
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I am assuming that this is not a brand new installation. If it is, go to http://www.femyers.com and download a manual for your pump.
If the pump has worked properly in the past, what seems to be happening is that the motor is locked up and the built in thermal protection is correctly protecting the motor. Or if by "safety switch" you mean the circuit breaker is tripping, then the following still applies.
The pump impeller may be jammed with debris, or the motor bearings may be worn out, causing the rotor to jam and stop rotating. Also a possibility - the seal between the pump and the electric motor has failed, allowing water into the motor and causing a short circuit which trips the breaker.
It is probably time to call the repairman, or replace the pump. Don't keep trying to turn on the motor; it will not fix itself and you may make things worse.
Remember, these pumps must be primed with water first before first use. Look in the Operating Instructions manual.
Try replacing first the capacitor. If it will not solve your problem, check the integrity of the motor winding insulation by doing a line to body resistance measurement. If it is okay, replace the motor bearings.
See if you can turn the impeller by hand...if you can then the motor start capacitor has probably bit the dust..this will throw a breaker if you leave it on too long...motor capacitors are available from appliance parts stores and some electrical supply warehouses
The motor for your well pump is going bad and it is pulling too much current on the start up ...this is burning up the pressure switches and is tripping your breaker..
It may be cheaper to replace the whole pump then to just replace the motor...
Thank you for posting your question here on Fixya.com. No, only a thermal overload. If the unit was hot and has had a chance to cool off it should start. If you have voltage to the motor and it will not even hum or buzz, you need a new motor. The short must have blown the winding open. If this answer does not fix your problem, please comment with additional details prior to rating the answer. Positive feedback is appreciated once your problem is solved! John
Normally pump motors are connected on a separate circuit with its own circuit breaker. At your house there is always a electrical control panel housing several circuit breakers for lights, power outlets, range, aircon, motors, etc...Find a tripped off breaker and reset it. To reset the circuit breaker is to switch it to off position and back to on position. Better still you may reset all the circuit breakers except the main circuit breaker (biggest amp rating). After resetting the circuit breakers, try to switch your bathtub pump on, (to test it, if it is still okey). Other- wise, your motor is damaged and you got to have the motor rewinded, to be operational.
Remove pump and check for something stuck in the impellor assuming that it has one. You didn't say what you are working with. So, sounds like something clogged or stuck in what ever it is that you are pumping. If that is not the case then you have a bad pump motor.
It's because you may have a defective starting capacitor or a stuck-up motor or pump. If you know how to check a capacitor, do so. If not try replacing the old one. If the problem still persist, try to turn the shaft with your hand. If you can't turn it. You might have a defective motor or pump bearings.