Happy Holidays Group,
I wonder if I could pick your brains on a Miprom 21?
6 stops in line, 350 FPM geared AC.
Elevator shut down a few inches from floor, no hard faults or soft faults. All led's indicate elevator is ready to run upon demand, safety circuit is good, relay status is correct but no calls can be registered. Hall buttons light and go out as soon as button is released. Car will not operate on inspection.

When service tool is connected there is no communication. Tries to log on then displays "turn tool off".

Any thoughts would be appreciated, Thank You