8550 Manual
Page 2
... Spring Extension Spring Tools Needed To prevent possible SERIOUS INJURY or DEATH: • ALWAYS call a trained door systems technician. 4. Preparation Safety Symbol and Signal Word Review This garage door opener has been designed and tested to offer safe service provided it is installed, operated, maintained and tested in strict accordance with the instructions and warnings...
... Spring Extension Spring Tools Needed To prevent possible SERIOUS INJURY or DEATH: • ALWAYS call a trained door systems technician. 4. Preparation Safety Symbol and Signal Word Review This garage door opener has been designed and tested to offer safe service provided it is installed, operated, maintained and tested in strict accordance with the instructions and warnings...
8550 Manual
Page 36
...Review Diagnostic Codes 1-1, 1-2, and 1-4 correct as a rope attached to set the time properly. 36 Excessive vibration on when the safety reversing sensors have an Smart Control Panel installed and the TTC is binding or sticking, contact a trained door systems technician. These are steady and not flickering. My garage door opener... light(s) will not turn off when the door is open: The garage door opener is constantly flashing green Battery LED flashing ...
...Review Diagnostic Codes 1-1, 1-2, and 1-4 correct as a rope attached to set the time properly. 36 Excessive vibration on when the safety reversing sensors have an Smart Control Panel installed and the TTC is binding or sticking, contact a trained door systems technician. These are steady and not flickering. My garage door opener... light(s) will not turn off when the door is open: The garage door opener is constantly flashing green Battery LED flashing ...