Originally Posted by lilargie
What could be causing this? Why would an outlet that housed the two things on it all of a sudden continue to trip when the pump is on it but the pump is fine on its own in another outlet and the outlet is fine on its own w/o the pump?
The original power circuit could have a problem causing a current
These are usually bad/loose/dirty connections somewhere.
With lite loads the effect is usually minimal,
But if a larger load tries to start up (motor)
then the losses become much larger,
possiblly stalling the motor.
remember motors require a large start up current
to get going.
Check all the connecttions,
right back to the panel if nessecary.