Waters ACQUITY UPLC Operator's, Overview And Maintenance Manual page 25

b. Using a small screwdriver, gently pry out the active preheater
retainer, and remove it from the column compartment.
Gently compress
retainer here
8. Remove any solvent lines routed behind the column heater door.
9. Detach the leak sensor connector from the front of the sample manager,
if fitted.
10. Remove the TORX screw from the right-hand side of the column heater,
just behind the eCord receptacle.
TORX screw
Preparing the column compartments
eCord
receptacle
21