Case Study:
Technical Troubleshooting Visit and Fault Identification on a Faulty 630 kg Passenger Lift

Background :

Our client faced operational disruptions with a 630 kg passenger lift at one of their commercial properties. This lift malfunction was causing inconvenience to tenants and visitors, prompting an urgent technical intervention.

Challenges:
The faulty lift presented a series of complex challenges

Unresponsive Controls: The lift exhibited an unresponsive state, with inoperative push buttons, indicators, and landing display units.

Anomalous Behaviour: The lift had a peculiar behaviour of traveling to the next lowest floor and failing to open its doors.

Can-Bus System Error: A Can-Bus error originating from the main PBCM Arca I controller was detected, affecting communication with the front serving components.

Interference Suspicions: Previous reports suggested potential interference with the controller, indicating a need for thorough investigation.

Initial Inspection and Testing:

Upon arrival, the lift was inspected and temporarily taken out of service. During subsequent testing, the lift exhibited unpredictable behaviour, failing to stop at the intended floor and demonstrating non-functional doors and controls.

Can-Bus System Evaluation:

We tested the Can-Bus system. Voltage readings and communication signals were measured across various points, revealing issues between the main PBCM Arca I controller and the front serving components.

Main PBCM Replacement:

Considering the interference suspicions and the likelihood of a faulty controller, our analysis led to the conclusion that the main PBCM was compromised. A recommendation was made to replace the main PBCM with a new unit.

Isolation and Safety Measures:

As a precautionary measure, the lift was isolated and positioned just below the top floor during the diagnostic process. This ensured safety while allowing for thorough inspection and replacement activities.

Conclusion:

Through a meticulous technical intervention, our team successfully identified the root cause of the elevator's malfunction and recommended a viable solution. This case study exemplifies our commitment to delivering efficient and precise lift troubleshooting skills and customer satisfaction. By addressing complex challenges with expertise, we continue to be a reliable partner in maintaining the vertical transportation systems for our clients.

Case Study: Technical Troubleshooting Visit and Fault Identification on a Faulty 630 kg Passenger Lift

Background :

Challenges: The faulty lift presented a series of complex challenges