The COMPRESSOR fault light indicates what condition?

The correct answer indicates that the COMPRESSOR fault light is illuminated when the air pressure valves have dropped below key settings. This light serves as an important indicator in monitoring the air pressure system, which is critical for the operation of traction systems. When the air pressure valves fall below the set thresholds, it can signal potential issues in the compression system that may affect overall performance and safety.

Maintaining proper air pressure is essential for various functions within the traction system, such as braking and equipment reliability. A drop below the critical levels suggests that the system may not be able to perform as required, leading to possible operational failures or safety risks.

Understanding this helps in diagnosing problems related to air pressure, ensuring that appropriate measures can be taken to rectify any discrepancies in the system’s performance proactively.