ACQUITY H-Class Sample Manager FTN does not cool below 9 degrees C - WKB2716

SYMPTOMS

• H-Class SMFTN is set to 5 °C, but it does not cool under 9 °C
• No errors in ACQUITY Console error logs
• Fan in back of SMFTN is running
• Sample compartment not cooling to set point

ENVIRONMENT

• ACQUITY H-Class Sample Manager FTN
• ACQUITY I -Class Sample Manager FTN
• ACQUITY I -Class Sample Manager Fixed Loop
• ACQUITY M-Class Micro Sample Manager Fixed Loop
• ACQUITY UPC2 Sample Manager Fixed Loop
• ACQUITY HDX Manager

CAUSE

• Operating outside the instrument's specifications
• Frost or ice on the sample chamber heat sink

FIX or WORKAROUND

1. Verify that the instrument is running within the ACQUITY Sample Compartment Temperature Specifications.
2. Perform defrost protocol of the ACQUITY Sample Manager.

ADDITIONAL INFORMATION