4-3
Moderate
LiftMaster · Garage Door Openers
Opener could not complete travel due to force/speed anomaly.
Quick Answer
Error code 4-3 on your LiftMaster Garage Door Openers means: Opener could not complete travel due to force/speed anomaly.. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Check door hardware movement manually.
2
Reset and relearn travel limits.
3
Adjust force settings per manual.
4
Inspect belt/chain tension.
5
Service opener motor if repeated stalls occur.
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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