Sir,
we are having problem with our air compressor Type GA-22. we cannot start the unit due to alarm "!" with cubicle type 1900-0525-11 Ed-00 . S. No. 118259 control voltage 230/24. Also we could not have it trouble shoot due to unavailable manual and electronic diagrams onboard. Please if you can send me the needed manuals and diagrams it would be of much help for us.
Thank you,
Ch. Engr Joey S. Alva