Typically, a failed starting capacitor or centrifugal switch will make it buzz or hum on starting (or attempting to start) and the motor won’t spin up. “Helping” it turn will get it going.
This is especially common when the motor is starting under load, such as in a pump. Find the capacitor and with it disconnected put an ohmmeter across the terminals to see if it charges. Reverse the leads and it should discharge. This is where an analog meter is helpful as with a digital meter (unless it’s the type with a bar graph) it won’t sample fast enough to see the charge/discharge occur. Dan > On Jul 21, 2016, at 8:42 AM, Meade Dillon via Mercedes > <mercedes@okiebenz.com> wrote: > > Thanks Dan, I'll take a look at those. > > ------------- > Max > Charleston SC > > On Thu, Jul 21, 2016 at 8:34 AM, Dan Penoff via Mercedes < > mercedes@okiebenz.com> wrote: > >> Starting capacitor, or possibly the centrifugal switch that disconnects >> the starting capacitor. >> >> Dan >> >> > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
