Tub turns free but motor will not run. Turn unit on and push start and timer starts to time down but no motor running. Put in diagnostics and unit displayed FL9 and when I tried changing time it displayed CO. Checked all thermal fuses and limits and they are good. Suspect a faulty control board but want to be sure. Looked at spec sheet and neither FL9 or CO are listed as a code on the spec sheet. Any suggestions. Any help greatly appreciated.