LiftMaster APT APT LOGIC 3 Manual - Page 28

TROUBLESHOOTING RADIO FUNCTIONALITY The error codes will display at the radio LED. NOTE: Radio receiver is compatible with 315MHz remotes ERROR CODE SYMPTOM R1 No response from the remote R2 No response from the remote R3 The remote cannot be learned R4 The remote cannot be learned R5 The remote cannot be learned R6 Cannot close via constant pressure in C2, D1 or E2 modes. DISPLAY POSSIBLE PROBLEM CORRECTION Quick Flash Unlearned remote A user tries to use a remote, but the RADIO LED only flashes briefly and there is no response from the operator. Try re-learning the remote (page 18). No LED activity Cannot recognize remote A weak signal caused by a discharged battery or outside interference with the radio - OR - the radio being learned is not compatible with the operator. Replace battery - OR eliminate interference - ORobtain a qualified remote. Radio LED turns off after 30 seconds Cannot recognize remote A weak signal caused by a discharged battery or outside interference interfering with the learn process - OR - the radio being learned is not compatible with the operator. Replace battery - OR eliminate interference - ORobtain a qualified remote. 2 Blinks No free records - Erase all learned remotes A user enters RADIO function and re-learn the desired learning mode but there is no remote. space left to add another remote. 3 Blinks Duplicate remote - This remote already has a A user enters RADIO function function associated with it. To learning and selects the function change the function, erase all to be learned. When the remote learned remotes and button is pressed for learning, a re-learn the desired remote. search reveals that remote is already learned. IR LED flashes No safety device present A safety device is required to close via constant pressure. Obtain direct connect eyes or a CPS3 device - OR - change to a mode that does not require constant pressure. 28