F&P dishwaher 601 ver2 wont drain -

Question

Hi
Thanks for the troubleshooting re the above post. Have finally got round to swapping controllers and still have the same problem.
1.How do you check motor to see if its working properly?
2.How do you take motor assembley/heat unit etc apart? The area where the rotor fits into is worn. Would this possibly cause the problem?

Appreciate your help.