ThyssenKrupp Escalator and Moving Walk Fault Code Guide

ThyssenKrupp escalators and moving walks are widely used in commercial buildings, transportation hubs, and public facilities. During operation, the control system monitors multiple safety components and displays fault codes when an abnormal condition occurs.

Understanding these fault codes helps maintenance technicians quickly locate problems and improve troubleshooting efficiency.

ThyssenKrupp Escalator Fault Codes

Common Causes and Inspection Suggestions

E2 – Handrail Fault

Check:

• · Handrail drive system
• · Handrail speed monitoring device
• · Sensor alignment
• · Handrail belt condition

A worn or loose handrail drive system may cause speed differences between the handrail and steps.

E3 / E8 – Chain Related Faults

Inspect:

• · Step chain tension
• · Drive chain lubrication
• · Chain wear condition
• · Sprocket condition

Long-term operation may cause chain elongation and abnormal movement, affecting ride comfort and safety.

E6 – Motor Phase Loss

Possible causes include:

• · Loose wiring connection
• · Power supply issue
• · Motor terminal failure
• · Contactor or electrical component problem

The power supply should be checked before replacing components.

E7 – Motor Overheating

Possible reasons:

• · Motor overload
• · Poor ventilation
• · Excessive mechanical resistance
• · Long continuous operation

Technicians should check motor temperature and mechanical load conditions.

ThyssenKrupp escalator fault codes provide important diagnostic information for maintenance personnel. Accurate fault identification combined with proper inspection procedures can reduce downtime and ensure safe escalator operation.

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