I have a Hayward EcoStar variable speed pump, model SP3400VSP, it is 5 years old, continually shutting off, usually tripping the circuit breaker, but not always. After resetting the circuit breakers, it will restart, but the time before shutting off again has gotten shorter and shorter, 3 day, 2 days, 1 day, and now it's almost immediate. Sometimes the screen on the pump's user interface says, "Drive Error! Power Interrupted", which the manual says "the line power supply was disconnected and reconnected too quickly and that the input current limiter is resetting itself". Several other error codes with "Drive Error" (not displaying) indicate "the drive may need to be replaced", but that's not what this one says so I hesitate to have it replaced (as 1 repair person has recommended) if it's some other electrical problem, especially since the motor drive is $1,100.00 plus installation. I have read several comments about this same problem that said it's the circuit breaker that needs to be replaced and more than one person even recommending Siemens circuit breakers to not have this problem with this pump, (but it's worked for years with the breaker I have now). What direction do you think I should go?