Error: Active Preheater Configured but not Detected (Guided Troubleshooting) - WKB96632

SYMPTOMS

Error: "Active Preheater Configured but not Detected"

ENVIRONMENT

• ACQUITY UPLC H-Class
• ACQUITY UPLC H-Class Bio
• ACQUITY UPLC I-Class
• ACQUITY UPLC H-Class PLUS
• ACQUITY UPLC H-Class PLUS Bio
• ACQUITY UPLC I-Class PLUS

STRATEGY

1. Ensure that the Active Preheater (APH) is secure - WKB80613
2. Ensure contacts are clean - WKB96736
3. Inspect software configuration settings:
   • For CM-A configurations with a 30-cm column heater/cooler - WKB14587
   • For CM-A configurations using multiple columns in series - WKB82546
   • For CH-A configurations with a 30-cm column heater/cooler - WKB28279
   • For CH-A configurations with a CH-30A - WKB92512
4. If you are on Empower using multiple system configurations, bring system offline and online again - WKB15643

ADDITIONAL INFORMATION