LiftMaster / Chamberlain / Craftsman · Garage Door Opener error code

Learn LED 5 flashesNo motor travel in the first second

Cross-checked High-voltage / caution

Unlock what this code means, its causes, tests and parts

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

Related diagnostic guides

Guide · Garage Door Opener

Opener runs or hums but the door does not move

Separate a disconnected trolley, a stripped gear/sprocket, a jammed trolley or a door problem (lock, broken spring). Door-side spring problems go to a door technician.

5 steps ~60 minmoderate

Guide · Garage Door Opener

Noisy garage door opener

Loose fasteners, poor lubrication, slack chain, worn drive gear or an unbalanced door. Separate opener noise from door noise by running each alone.

4 steps ~40 mineasy

Guide · Garage Door Opener

Door stops short or reverses at the floor (travel limits and force)

Usually travel limits or force need reprogramming, or the door is binding/out of balance. Test the door by hand first.

4 steps ~45 minmoderate