not the first time a tech tunneled vissioned on just one thing myself included
you very well could have had a two fold problem a bad motor and a weak board. The tech saw the motor and replaced it and leaves not realizing there could be other problem like an intermitant board problem.
this isnt all that uncommon when casing calls and rushing
give the guy a break
I just wanted to Thank everyone for answering my questions! It was really helpful! Unit is still running so I'm keeping fingers crossed that the problem has been solved!