@Ted S posted:A trick I learned a long time ago that comes in handy for steam locos whose e-units may be contaminated with smoke residue... If you obtain some plastic-compatible contact cleaner- what used to be called "color TV tuner cleaner"- you can spray the e-unit contacts with it, and sometimes that will improve operation.
CRC 2-26 is what I use and would recommend for cleaning contacts such as those on the e-unit drum/fingers.
