All the other toys on the market for motor testing are nice...I learned to use the crank megger in the Navy and it has never done me wrong.
A quick and dirty multimeter check should read infinite from phase to ground and 10-40 ohms phase to phase (the resistance gets bigger for smaller motors).
A basic megger test (not the polarazation stuff or the like) should be greater than 300 k ohms. The phase to phase should show similar results as the multimeter does.
If these fail...the motor is suspect, and I would call the dealer.
Carl
