I have a customer that has a Ultra Flow 1 1/2 hp pool pump. The motor gave up the ghost so I went to SCP and got a replacement motor. When I split the pump I discovered cracks in the impeller. I replaced it with the same part number only to discover that the impeller that came of was a 1 hp impeller. Long story short, I got the correct impeller and put it back together. now the motor cycles on and off. We warrantied the motor with a new one and it does the same thing. I have double checked that I have it wired correctly. Its wired for 115 and yes I have the switch in the right position. I have replaced a lot of motors with no problems but this one has me stumped!
Any thoughts would be a huge help.