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Fault Diagnosis / Production Recovery

Troubleshooting & Root Cause Analysis

A systematic approach to industrial faults: understand the symptom, collect evidence, trace the control sequence, isolate the cause, verify the repair and reduce the chance of recurrence.

Ebrahim Mohammadpour working beside an industrial electrical control panel
18+ years
Industrial experience
PLC / HMI
Online diagnostics
Electrical
Signal & circuit testing
RCA
Root-cause focus
METHOD

Structured fault diagnosis

Fast troubleshooting without guesswork, based on machine state, evidence and a clear test sequence.

  • Alarm and event-history review
  • Sequence, permissive and interlock analysis
  • Symptom-to-cause test planning
  • Repair verification and recurrence prevention
AUTOMATION

PLC, HMI & communication faults

Tracing machine behavior from the operator screen through PLC logic to remote devices and field signals.

  • Online PLC monitoring and logic tracing
  • Digital and analog I/O diagnostics
  • HMI alarms, trends and status analysis
  • PROFIBUS, Ethernet and device communication checks
ELECTRICAL

Electrical fault finding

Systematic checks across power, protection, control circuits, drives, sensors and actuators.

  • Power supply and protection checks
  • Control-panel and field-wiring tests
  • VFD, motor and feedback diagnostics
  • Sensor, actuator and safety-circuit verification
RECOVERY

Production recovery & reliability

Restoring operation safely while capturing the information needed for a lasting corrective action.

  • Safe restart and functional confirmation
  • Failure documentation and root-cause reporting
  • Preventive actions and inspection points
  • Operator and maintenance-team guidance