LiftMaster Error Codes

19 LiftMaster codes across garage door opener.

LiftMaster Garage Door Opener Codes

1-1 1-1 — Safety sensor wire short or reversed 1-2 1-2 — Safety sensor wire shorted or reversed 1-3 1-3 — Door control or wire issue 1-4 1-4 — Safety sensors misaligned 1-5 1-5 — Motor overheated or stuck 1-6 1-6 — Logic board or motor relay failure 2-1 2-1 — Force setting too low 2-3 2-3 — Open and close limits not set 2-5 2-5 — Logic board internal fault 3-2 3-2 — Excessive number of cycles 3-5 3-5 — Wi-Fi or myQ network problem 4-1 4-1 — Door obstruction detected 4-3 4-3 — Position sensing problem (door speed) 4-4 4-4 — RPM sensor signal lost 4-6 4-6 — Door lock engaged or wall-mount cable tension fault 5-1 5-1 — High voltage or power supply fault 5-5 5-5 — Logic board self-test failure 6-1 6-1 — Battery backup low or failed 6-4 6-4 — Maintenance alert