8550 Manual
Page 35
... door opener clicks but no Bad logic board movement Replace the logic board. 1-5 1 FLASH 5 FLASHES The opener runs approximately 6-8" Communication error to the receiving sensor (green LED). If the sending sensor and the light(s) will not close Safety sensors are connected, then replace the... the light(s) will flash installed, connected, or amber LED is NOT lit, check the wire and connections for that sensor. DIAGNOSTIC UP CODE ARROW DOWN ARROW SYMPTOM CAUSE RESOLUTION 1-1 1 FLASH 1 FLASH The garage door opener will flash shorted or reversed (amber LED) is faulty...
... door opener clicks but no Bad logic board movement Replace the logic board. 1-5 1 FLASH 5 FLASHES The opener runs approximately 6-8" Communication error to the receiving sensor (green LED). If the sending sensor and the light(s) will not close Safety sensors are connected, then replace the... the light(s) will flash installed, connected, or amber LED is NOT lit, check the wire and connections for that sensor. DIAGNOSTIC UP CODE ARROW DOWN ARROW SYMPTOM CAUSE RESOLUTION 1-1 1 FLASH 1 FLASH The garage door opener will flash shorted or reversed (amber LED) is faulty...
8550 Manual
Page 36
... door opener is okay, reprogram apparent reason or after sticking door touching the floor 4-5 4 FLASHES 5 FLASHES The opener runs Communication error to page 24. 4-2 4 FLASHES 2 FLASHES The door stops while opening Obstruction, binding or Manually open and close the door. ...a custom time, press the ON button on page 27. If your door is working properly. Check for no Safety sensors were Review Diagnostic Codes 1-1, 1-2, and 1-4 correct as a rope attached to page 2 . If problem persists remove the sensors apparent reason while temporarily obstructed from ...
... door opener is okay, reprogram apparent reason or after sticking door touching the floor 4-5 4 FLASHES 5 FLASHES The opener runs Communication error to page 24. 4-2 4 FLASHES 2 FLASHES The door stops while opening Obstruction, binding or Manually open and close the door. ...a custom time, press the ON button on page 27. If your door is working properly. Check for no Safety sensors were Review Diagnostic Codes 1-1, 1-2, and 1-4 correct as a rope attached to page 2 . If problem persists remove the sensors apparent reason while temporarily obstructed from ...
