LiftMaster
Stuck Light Relay or Active Motion Sensor Feature
Garage door opener light stays on and will not turn off after the usual timeout.
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Possible Causes
Wall control light button latched on, motion-detect feature enabled, stuck relay on logic board, shorted light circuit
How to Fix / Troubleshooting
Safety: Avoid using oversized bulbs that can overheat the housing.
- Check wall control: Press the light button to toggle the light off. Some models have a motion sensor that keeps the light on when motion is detected.
- Disable motion temporarily: On motion-sensing wall controls, turn off the motion feature and see if the light begins to time out normally.
- Power cycle: Unplug the opener for 60 seconds and plug back in to reset the relay.
- Replace logic board: If the light remains on regardless of controls, the light relay on the board may be stuck closed and the board should be replaced.
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Repair Difficulty
Easy
2/5
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