- 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)" appears and temperature cannot be set.
- Error persists with a different power cable.
- Alliance HPLC System
- 2695 Separations Module
- 2795 Separations Module
"Column temperature h/w fault (7)" indicates that the column heater/cooler electronics have signaled an internal power failure.
FIX or WORKAROUND
- 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).
If all conditions above are met, contact Waters technical support and request an on-site visit for further troubleshooting.
2690, 2690D, 2690DUPGD, 2690UP, 2695, 2695D, 2695DE, 2695DEB, 2695DUP, 2695E, 2695EB, 2695INERT, 2695UP, 2790XE, 2790XEUP, 2795E, 2795UP, 2795XE, A-10SSM, ALLCOLCLR, ALLCOLHTR, ALLCOLHTRB