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ACQUITY CM-A Error: Column active preheater over-temp fuse h/w fault - WKB4114

Article number: 4114

SYMPTOMS

Error message in console: Column active preheater over-temp fuse h/w fault

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ENVIRONMENT

  • ACQUITY UPLC I-Class
  • ACQUITY UPLC H-Class
  • ACQUITY UPLC M-Class
  • Column Manager
  • CH-A

CAUSE

Faulty active preheater (APH)

FIX or WORKAROUND

Replace active preheater

ADDITIONAL INFORMATION

Use the correct APH for your model: What is the part number for the ACQUITY Active Preheater (APH)? - WKB7232

In certain cases the observed issue might be caused by worn contact surfaces on the active preheater itself. It is worth trying to clean the contact surfaces before replacing the active preheater.

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