ACQUITY UPLC Column Heater - "Active Preheater Configured but not Detected" - WKB1265

SYMPTOMS

• The error message "Active Preheater Configured but not Detected" appears

ENVIRONMENT

• ACQUITY Column Manager Active (CM-A)
• ACQUITY Column Heater
• ACQUITY UPLC H-Class
• ACQUITY UPLC I-Class
• ACQUITY Arc
• MassLynx
• Empower

CAUSE

Active Preheater (APH) not identified due to

1. APH not positioned correctly in retainer clip
2. Column Heater/Manager module not connected to SM-FTN

FIX or WORKAROUND

1. Ensure column compartment is (physically) connected to SM-FTN
2. Reseat the APH in column compartment
3. In Waters console, click Column Manager
4. Select Control > Reset CM

Note: If the system is equipped only with a Column Heater compartment, in step 2 go to the Sample Manager and in step 3 to Control > Reset SM.

ADDITIONAL INFORMATION

If the error occurs only in one column position, swap the Active Preheater´s to check if the issue is a APH fault. If the APH´s are fine then it could be the CMA Dual Column Module itself that is faulty. Replace the Dual Column Module, part number: 700005434.