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Waters

2695 Alliance error: Column temp h/w fault (7) - WKB11362

Article number: 11362

SYMPTOMS

  • When setting the column temperature on the Alliance or setting up your inlet method in Empower/MassLynx, the error message "Column temp H/W fault (7)" comes up and you cannot set the temperature

ENVIRONMENT

  • Alliance HPLC System
  • 2695 Separations Module
  • 2795 Separations Module

CAUSE

"Column temperature h/w fault (7)" indicates that the column heater/cooler electronics have signaled an internal power failure.

FIX or WORKAROUND

  1. Ensure that the column heater/cooler is plugged in and turned on. There is an on/off switch on the lower-right side of the column oven.
  2. If the error persists, you can contact Waters via  iRequest to request an on-site visit to help you troubleshoot. The power supply most likely needs replacing.

ADDITIONAL INFORMATION

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