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 out of balance. Check the Door 1. Read them . Check...
... 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 out of balance. Check the Door 1. Read them . Check...
8550 Manual
Page 36
... your garage door opener and reprogram the remote control(s). for no apparent reason sticking door 4-3 4 FLASHES 3 FLASHES The door reverses for no Safety sensors were Review Diagnostic Codes 1-1, 1-2, and 1-4 correct as a rope attached to the door. apparent reason or after sticking door the travel module. 6-8" and stops and/or reverses 4-6 4 FLASHES...
... your garage door opener and reprogram the remote control(s). for no apparent reason sticking door 4-3 4 FLASHES 3 FLASHES The door reverses for no Safety sensors were Review Diagnostic Codes 1-1, 1-2, and 1-4 correct as a rope attached to the door. apparent reason or after sticking door the travel module. 6-8" and stops and/or reverses 4-6 4 FLASHES...