Fixing this Griot's G9 polisher

[Brad Hays]

I have a Griot's G9 Random Orbital Polisher I got off ebay a few months back and didn't actually plug it in til this week. Turns out it doesn't give any indication of wanting to work at all. Motor brushes seem to be ok and I have no idea what to look for next.

Any advice on what to check next on this thing to get it running again?

 

[Richard Coers]

Did you check the switch with a multimeter?

 

[Brad Hays]

Not yet, but that's the next step. I'm not so experienced at probing these kinds of switches with a multimeter so hopefully I can figure it out.

 

[Brad Hays]

I've checked continuity in the power cord all the way up to the part I'm holding, which is the trigger switch itself with the power cord input leading in from above. Which parts should I get the probes on when I'm working the switch and testing for continuity?

 

[robo hippy]

Only way I know of to fix some thing like this is to take it to a repair shop....

robo hippy

 

[Richard Coers]

I'd test blue to red. Very seldom do you see a hot lead in white insulation.

 

[stu senator]

I would test the continuity of the wires, each terminal that plugs into the wall to the white and then the black. If OK the wires are not broken.
Then test the switch, continuity between the plugs, and flip the switch and see if it works.
That's basic on any circuit.
As for the rest I would look for a circuit diagram in the instruction book or on line as I do not see where the wires go

 

[Brad Hays]

After this last round of testing I'm guessing this switch is actually working like it should. The black and blue wires share the same terminal. When the switch is off the left white and black wires show no connectivity, but when on they do. Since this is reaching the edge of my electrical / motor construction experience I'm thinking I'd be better off just getting another one rather than having to be hand held through more testing.