self diagnostic

I am using AX 2550 v 1.5 and I just got it. I tried doing the self diagnostic check described in the user manual. The display reads out the version number, but the connected motor vibrates, but does not turn. the manual says the controller will take the motor to max speed forward and then reverse and cycle this until the controller is reset. the motor didn't turn and enough power was certainly available because I was able to turn the motor up to 210 rpm using robosetup. according to the manual, my controller did not successfully complete the self diagnostic. any suggestions?

Self test is a very basic feature which should just work. It is actually use as part of the production test.

Verify that you don't have the motor wires crossed (e.g. white from C1 and green from Ch2)

If problem persist contact us directly for further assistance or exchange.