Gary's computer hasn't resolved the issues I've been having. I've installed a 12g. ground wire thru the inside of the dust hose as Brady mentioned in another post. Wire pokes thru the hose at the metal ducting connection. Protruding wire is spliced to stranded 12 guage and home run to the dust collectors grounding terminal screw in D.C. motors' electrical connection box. Grounding from box to wall power cable on D.C. has been checked for continuity.
Pox switch errors and failed c-2/ c-3, SB3 routines and SB3 hang-ups were present yesterday afternoon and I was only able to get 1 sheet out. Still have two more sheets to complete the job.
Hopefully, running a bare copper cable thru the duct hose, instead of the hose's wound reinforcement wire, will work and all these constant errors will go away.