Yokogawa GC8000 – Error 602
Slow oven warm-up during analyzer startup.
Status
🚧 This case study is under preparation and will be published soon.
Typical Field Symptoms
- Oven temperature increases very slowly
- Startup timeout leading to Error 602
- Analyzer remains stuck in warm-up sequence
- No chromatographic analysis initiated
Common Suspected Causes
- Partial degradation of oven heater
- Low or unstable heater supply voltage
- Restricted airflow or blocked ventilation
- Heat loss due to aging insulation
- Incorrect oven temperature ramp parameters
This page will be updated with full field diagnosis, measurements, corrective actions, and lessons learned from real plant experience.