LiftMaster GH GH LOGIC 3 Manual - Page 29

TROUBLESHOOTING RADIO FUNCTIONALITY The error codes will display at the radio LED. NOTE: Radio receiver is compatible with 315 MHz remotes. ERROR CODE SYMPTOM DISPLAY POSSIBLE PROBLEM CORRECTION R1 No response from Quick Flash Unlearned remote - A user tries to use a Try re-learning the remote the remote. remote, but the RADIO LED only flashes (page 18). briefly and there is no response from the operator. R2 No response from No LED Cannot recognize remote - A weak signal Replace battery - OR - the remote. activity caused by a discharged battery or outside eliminate interference - OR - interference with the radio - OR - the radio obtain a qualified remote. being learned is not compatible with the operator. R3 The remote Radio LED Cannot recognize remote - A weak signal Replace battery - OR - cannot be learned. turns off after caused by a discharged battery or outside eliminate interference - OR - 30 seconds interference interfering with the learn obtain a qualified remote. process - OR - the radio being learned is not compatible with the operator. R4 The remote 2 Blinks No free records - A user enters RADIO Erase all learned remotes and cannot be learned. function learning mode but there is no re-learn the desired remote. space left to add another remote. R5 The remote 3 Blinks Duplicate remote - A user enters RADIO This remote already has a cannot be learned. function learning and selects the function function associated with it. To to be learned. When the remote button is change the function, erase all pressed for learning, a search reveals that learned remotes and re-learn remote is already learned. the desired remote. R6 Cannot close via IR LED flashes No safety device present - A safety device Obtain direct connect eyes or a constant pressure is required to close via constant pressure. CPS3 device - OR - change to in C2, D1 or E2 a mode that does not require modes. constant pressure. 29