Thermo Scientific Dionex UltiMate 3000 Series Operating Instructions Manual page 179

Problem
The temperature in the
column chamber does not
change for some time
although the temperature set
point has not been reached.
(Cont'd)
Operating Instructions
Probable Cause
The capillaries are placed in such
a manner that ambient air can
enter the column chamber.
Temperature control is turned off.
(The following information
appears on the status screen:
Setpoint: Off.)
The seal of the compartment door
is damaged.
UltiMate 3000 Series:
NCS-3500RS and NCP-3200RS
Remedial Action
Verify that the capillaries are
routed correctly through the
guides on the sides of the
column chamber and/or rest
flat on the edge of the
enclosure (→ section 4.2.2,
page 60).
Check and change the
temperature control setting
(→ page 127).
Contact Service.
Page 171