Response to I have a 7-187400-20, Century Centurion, AO Smith, 3/4HP pump that just hums. When I turn the exposed end of the axle with my fingers it will start. It runs quiet. But it will not start by itself. Is this the Capacitor and which spec do I need? The motor is 230/115V, 6.5/13amps 3450RPM.

An image is worth 1,000 words! Add an image or two to your comment to help ensure it is understood accurately.



Yes, please email me exclusive discounts, swimming pool tips and helpful how to guides. This comment may be posted on a public site. Do not include: HTML, references to other retailers, pricing, personal information, or any profane, inflammatory language.