Just wondered if anyone had manual for this? We think we got it, but there are acronyms on the screen (LED lights on and off) that we cannot find on the print?

Car stopping in middle of hoistway and losing CDT and FPS. Then will restart and run for day-week-long time and then do it again.

Thanks for any help.

CDT= Car Door Lock Terminal
CD= Car Door lock relay energized
HDT= Hall Door Lock Terminal
HD= Hall Door lock relay energized

When you cycle door these should go off and with doors closed should be high (on). I have a 4 stop hydro unit that lost that input due to door lock voltage being low. We had to solder a wire on spare input on board RDHV 9608v1 board it’s behind HYD 9806 control board on left usually if it’s a hydro. If you have a hydro version hope this helps.