8550W Owners Manual
Page 38
...at the logic board. Check wiring connections at travel or retain position. Manually open and close the door. Battery backup charging circuit error, replace logic board. *(if applicable) 38 Inspect sensor wires for 1-2 seconds no movement. The wires for the safety sensors. ... or sound. Troubleshooting Diagnostic Chart Your garage door opener is hanging or mounted on the garage door opener flash the diagnostic codes. The UP and DOWN arrows on the door that would interrupt the sensors path while closing. 1 5 Door moves 6-8" stops or reverses...
...at the logic board. Check wiring connections at travel or retain position. Manually open and close the door. Battery backup charging circuit error, replace logic board. *(if applicable) 38 Inspect sensor wires for 1-2 seconds no movement. The wires for the safety sensors. ... or sound. Troubleshooting Diagnostic Chart Your garage door opener is hanging or mounted on the garage door opener flash the diagnostic codes. The UP and DOWN arrows on the door that would interrupt the sensors path while closing. 1 5 Door moves 6-8" stops or reverses...
8550W Owners Manual
Page 39
... to my Wi-Fi network: The garage door opener can be replaced, see page 31. Troubleshooting DIAGNOSTIC CODE Up Arrow Flash Down Arrow (es) Flash(es) 4 1-4 4 5 4 6 SYMPTOM SOLUTION Door ... My vehicle's Homelink® is a new installation, cycle the garage door opener. Communication error to activate Wi-Fi LEARN mode. The garage door opener will move in the down direction...obstructions. Ensure the Wi-Fi signal is reaching the garage, see page 4 or visit WiFiHelp.LiftMaster.com for more information.The garage door opener will not activate the garage door: l Verify ...
... to my Wi-Fi network: The garage door opener can be replaced, see page 31. Troubleshooting DIAGNOSTIC CODE Up Arrow Flash Down Arrow (es) Flash(es) 4 1-4 4 5 4 6 SYMPTOM SOLUTION Door ... My vehicle's Homelink® is a new installation, cycle the garage door opener. Communication error to activate Wi-Fi LEARN mode. The garage door opener will move in the down direction...obstructions. Ensure the Wi-Fi signal is reaching the garage, see page 4 or visit WiFiHelp.LiftMaster.com for more information.The garage door opener will not activate the garage door: l Verify ...