Home Forums General Discussion Technical Questions DMC no hall or car calls

Afternoon brothers,

Found the unit on the top landing (3rd) floor with doors open. Ran through your typical maintenance check, broken parts, debri in track, same old same old. Closed everything up and turned the power back on. (Building owner had it off). The unit will run on inspection but will not take a hall call or car call. Button lights no latch. No blown fuses. I did find that the 3v battery in the car top box was dead, replaced that. I also tried jumping P24 to 1U, 2D etc, no luck there. I will have the laptop with DMC fast tomorrow to take a look at what’s going on. Any input would be appreciated. Thx