Hello, I’m new to this whole forum thing but have a problem that I just can’t seem to figure out. I work for an independent company and we recently acquired a couple Otis Gen2 units to service. Installed 3 years ago and we’re having problems pretty regularly now. I’m getting a 2703 drive fault. Since we’ve had the account I’ve noticed a strange noise intermittently when the brake would pick but now it seems like the brake is either not picking and causing the drive to fail or the drive is not sending the signal for the brake to pick. My brake switches appear to be working as intended as I can see the LED’s dropping when they are supposed to. When BP attempts to pull in it drops out immediately. This happens several times before the car just shuts down. I guess the question is, how do I determine wether the brake itself is the issue, or the drive is the culprit? Thanks for any input!