Schindler 5500 Error Codes Verified Fix Access

Error in the 24V circuit; check fuses F4A-LB or F2A-LB.

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| Code | Description (Verified) | Common Cause | Recommended Action | |------|------------------------|---------------|---------------------| | | Safety chain open – governor overspeed | Mechanical overspeed or faulty governor switch | Reset governor; test overspeed switch manually. | | E-4004 | Buffer switch activated | Car or counterweight impacted buffer at terminal floor | Check terminal slowdown limits; inspect buffers. | | E-4010 | Pit emergency stop switch open | Accidental activation or water in pit pump | Reset switch; check for flooding or debris. | | E-4025 | Door contactor monitoring failure | Welded auxiliary contact or software mismatch | Replace contactor; verify feedback logic. | Error in the 24V circuit; check fuses F4A-LB or F2A-LB