LiftMaster · Garage Door Opener Moderate

3-2 — LiftMaster 3-2 — Power Outage / Relearn Travel

3-2 means the opener experienced a power outage and needs to relocate/relearn its travel limits. Re-run the travel program. It is not a thermal max-cycle cool-down. (Diagnostic meaning corrected against the official Chamberlain Group / LiftMaster Security+ 2.0 chart; flash-code meanings can vary by opener family — confirm for your exact model.)

Keep using it?
Yes, with caution
DIY difficulty
Easy
Verified against
liftmaster.com ↗

How to fix it

  1. Re-run the travel/limit programming for your opener model (see the manual).
  2. Cycle the door fully to confirm the limits are re-learned.

Why it happens

Typical signs: Appears after a power outage · Door will not travel fully open/closed · Flash code 3-2

  • Power outage cleared the learned travel positions After losing power the opener must relocate/relearn how far the door travels.

More LiftMaster garage door opener codes

1-1 1-1 — Safety Sensor Obstructed, Misaligned, or Disconnected 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 — No RPM Detected at Start of Movement 1-6 1-6 — Unexpected RPM After Stop at Open

All LiftMaster codes → All garage door opener codes →

Frequently asked questions

What does the 3-2 code mean on a LiftMaster garage door opener?

3-2 means the opener experienced a power outage and needs to relocate/relearn its travel limits. Re-run the travel program. It is not a thermal max-cycle cool-down. (Diagnostic meaning corrected against the official Chamberlain Group / LiftMaster Security+ 2.0 chart; flash-code meanings can vary by opener family — confirm for your exact model.)

What causes the 3-2 code on a LiftMaster garage door opener?

Power outage cleared the learned travel positions: After losing power the opener must relocate/relearn how far the door travels.

Is it safe to keep using a LiftMaster garage door opener with a 3-2 error?

Yes, with caution. This is rated a moderate-severity fault.

How do I fix 3-2 on a LiftMaster garage door opener?

Re-run the travel/limit programming for your opener model (see the manual). Cycle the door fully to confirm the limits are re-learned.

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: liftmaster.com.