Roche cobas b 221 system

Roche Diagnostics May 2009
Service Manual · Version 9.0 D-69
cobas b 221 system 7 Troubleshooting
Value flag s
Possible causes: o Aspiration path leaks or is blocked
Remedy: o Call up "Hemolyzer test".
e For instructions, see Hemolyzer on page D-131.
o Check/replace main pump tube.
e For the details, see Replacing the pump tube on page B-67.
o Call up "General fluidics test" and check that tubing paths are open and without
leaks. h [System] > [Diagnostics] > [General fluidics test].
o Check COOX module cuvette for leaks and if necessary replace.
e For the details, see Replacing the cuvette on page B-59.
Flag no. 1038 "No sample detected (9)"
No rinse solution detected by SS3 during calibration of Hb module (tHb/SO
2
or
COOX module depending on instrument configuration).
Possible causes: o Aspiration path leaks or is blocked
Remedy: o Call up "Wash".
o Check/replace main pump tube.
e For the details, see Replacing the pump tube on page B-67.
o Call up "General fluidics test" and check that tubing paths are open and without
leaks. h [System] > [Diagnostics] > [General fluidics test].
o Check COOX module cuvette for leaks and if necessary replace.
e For the details, see Replacing the cuvette on page B-59.
o Perform sample sensor test (SS3). Press [Measure] and [Calibrate].
h [System] > [Component test] > [Control sensors] > [Sample sensors].
e For instructions, refer to the cobas b 221 system Reference Manual, section
"Component test".
Flag no. 1050 "No sample in SIP"
No sample detected in the sample inlet path at SS2 or SS6.
Possible causes: o Sample path leaks or is blocked
o No sample was input
Remedy: o Call up "General fluidics test" and check that tubing paths are open and without
leaks. h [System] > [Diagnostics] > [General fluidics test].
o Check seating of T&D lock.
e For the details, see T&D system (Turn & Dock) on page B-21.
o Check that bypass nipple is correctly seated.
e For the details, see Replacing the bypass nipple on page B-24.
o Prevent direct sunlight or fluorescent light on the plug control (incorrect sample
container detection).