1-2
Moderate
LiftMaster · Garage Door Openers
Travel calibration data is invalid or incomplete.
Quick Answer
Error code 1-2 on your LiftMaster Garage Door Openers means: Travel calibration data is invalid or incomplete.. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Run complete travel relearn process.
2
Verify smooth manual door operation.
3
Reset opener power and retry learn sequence.
4
Check force settings after travel set.
5
Service controller if relearn repeatedly fails.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
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