I have a Whisperflo 1.5 hp pump that is about 11 years old. Recently on startup, sometimes it hesitates before starting. I can hear the timer come on, a "hum" indicating power, and then after 1 or 2 second delay the pump starts up. On occasion it has paused so long that the breaker trips and I have to reset the breaker and flip the switch a time or two to get it started. Any ideas? Is this a brush type motor? I tried searching the net but all I can find are places selling the whole pump. If it is something I can repair I would prefer to go that route. If you have any ideas, or places to buy rebuild motor kits please let me know.

Thank you,
John