(i) Localised to a particular area of Engine room:

• Damaged or degraded cables may cause short circuits or open circuits, leading to irregular signals and false alarms.
• Faults in specific control cards or panels associated with a particular area can result in localized errors or alarms.
• Accumulated moisture or water on terminals due to condensation or leaks can distort electrical signals, causing false alarms.
• Electromagnetic interference from nearby equipment or systems may disrupt the signals in a specific area, leading to incorrect alarms.
• Grounding or earth faults in a particular circuit can cause irregularities limited to that area.
• High or uneven temperatures in localized regions may interfere with the monitoring system, generating false alarms.

(ii) General to the Engine Room

• A significant dip in supply voltage or complete power failure to the system can lead to false alarms and overall system malfunction.
• Widespread grounding issues or major earth faults in the system may trigger alarms throughout the engine room.
• Hardware malfunctions or software glitches in the UMS system's processing unit can cause generalized faults.
• Elevated temperatures in the engine room can impact the performance of sensitive electronic systems, resulting in false alarms.

• Immediately shut down the UMS and transition to manual monitoring and control of all engine room equipment. Implement a strengthened watchkeeping system with increased personnel.
• Immediately report the UMS failure and implemented actions to the Chief Engineer and Master.
• Begin manually recording all vital parameters (temperatures, pressures, levels, etc.) for all machinery. This provides a backup monitoring system.
• Verify the functionality of all emergency shutdown systems, fire-fighting equipment, and other safety devices independently of the UMS.
• Ensure all watchkeeping personnel are fully briefed on the manual operation procedures for all critical machinery.
• Closely monitor tank levels, pressures, and temperatures using manual gauges and instruments to ensure safe and stable operation.

• Restart the UMS processing unit to eliminate temporary software glitches and check if the fault persists.
• Check the power supply to ensure it is within the correct range. If a voltage dip or failure is identified, investigate its cause, such as battery charging issues or faulty components, and rectify them.
• Use an earth fault indicator, if available, to detect grounding issues. If no indicator is present, isolate individual fuses systematically to identify the faulty circuit.
• Conduct a visual inspection of cables and terminals for damage, corrosion, or overheating. Replace or repair any damaged components.
• Check for water ingress or condensation. Dry affected areas using a dry air blower and apply moisture-protective sprays if necessary.
• Confirm that the UMS system is adequately ventilated and operating within the recommended ambient temperature range. Address any overheating issues.
• Once suspected faults are rectified, test the system to verify proper functioning. Gradually reintroduce the isolated components to ensure the issue is resolved.