Trouble Shooting
| Step | Cause | Solution | Parts |
| 1 | Exit sensor defective. | Replace exit sensor. | Exit sensor (007-0066-0-SP) |
| 2 | Exit motor defective. | Replace exit motor. | Exit motor (003-8182-0-SP) |
| 3 | IFA99 board defective. | Replace IFA99. | IFA99 (004-2786-9-SP) |
| 4 | Main board defective. | Replace the main board. <Video Link> | Main board (Please refer to service parts table) |
