Post a schematic of how the switch is wired from the panel to the switch, to the relay, to the pump. If it is chattering, that means it is still getting voltage through current leak. What is the rating on the switch & relay?
Yes, you have it wired wrong:yes:Any ideas sas to why the chatter?
Rob, your answer fixed my problem. Thanks for the quick response - RichWith most pumps, there cannot be any switch between the control box and the pump motor. If these lines are switched off, the start relay and that start capacitor will form an inductive-reactive circuit. Basically, they'll fight with each other. This is the chatter you're hearing.
The switch can be installed anywhere in the line from the panel to the control box, and it'll work fine.