motor giving problems

Sounds like it needs a new start capacitor.

As I recall it's under a cover screwed to the side of the motor.

Neil

Don't relish the thought of messing about with capacitor... don't fancy getting a wallop of 500 v... just another thought, do these motors have brushes?

​George.

Edited By mechman48 on 15/07/2017 20:15:39

George, the capacitor in one of these will usually discharge itself over time, but you can easily discharge it using a resistor and a couple of wires, or even the high range on a voltmeter.

Easy to change, it's under the cover at right of your photo, it will probably have spade terminals..

Just make sure the replacement is a motor capacitor with the same value and voltage.

No they don't have brushes.

Which was going to be my question. Easy to check, and could give the symptoms.

EDIT - Super Adept Man answered the question.........

Edited By David Standing 1 on 15/07/2017 20:34:41

It could also be the centrifugal switch. When you remove the wires from the capacitor measure the resistance between the wires that you removed from the capacitor. If the centrifugal switch is closed (Which it should be when the motor is stopped.) you should get a reading of about 10 to 20 ohms. this will be the resistance of the main winding in series with the start winding and the centrifugal switch. If you get a high reading then the centrifugal switch is not switching in the start winding and start capacitor. (An open circuit start winding would also give a high reading but it is not very likely to be the start winding.)

Les.

To avoid confusion - the marking for the spec of the capacitor (500v, etc) tells you what to re-order, but this is not the voltage at which the capacitor is run in this example, or the voltage it may hold when switched off.

There is usually a margin of safety in such devices.

Cheers, Tim

deleted

Edited By john carruthers on 16/07/2017 09:00:53