Common Fault Phenomena and Troubleshooting Ideas for Automatic Doors
Common Faults and Troubleshooting Ideas for Automatic Doors
When an automatic door operates abnormally, common manifestations include: no action after sensing, the door leaf stopping midway, repeated opening and closing, or continuous alarm from the safety light curtain. Most cases are related to power supply, sensor obstruction, foreign objects in the guide rail, or parameter settings. Basic checks can be performed first while ensuring safety.
Troubleshooting suggestions: Confirm that the main power supply and circuit breaker are normal; check whether the radar and light curtain transmitter and receiver are aligned and whether the lens is dusty; inspect the guide rail and rollers for jamming; check whether the controller is in manual or normally open mode. If there is abnormal motor noise, glass breakage, or abnormal fire linkage, stop using the door and contact professionals.
- Confirm power supply and switch status
- Check sensor alignment and cleanliness
- Inspect guide rail and rollers for jamming
- Contact maintenance after abnormal shutdown