Hi guys , I've got a Stuart turner 3.5 bar pump, packed up this morning, makes a buzz like its stuck , stripped it down, was a bit stiff but it ok after moving it. Plugged it in just to test it, it made the same buzz, but when you turn the shaft the pump starts and keeps going, so motor is working. When I reconnected everything, still just buzzing, any ideas what can be causing it?
any help gratefully received.
any help gratefully received.