Roche Diagnostics May 2009
D-20 Service Manual · Version 9.0
7 Troubleshooting cobas b 221 system
System stops
Error 10046 "Waste line blocked"
The connection from separator into the waste container is not continuous.
o Insert new waste container.
Waste separator empty:
o In the sensor test check the functioning of the waste sensor and if necessary
replace the waste sensor.
Waste separator full:
o Check waste system (valve, waste tube, waste container) for blockages and replace
the relevant component.
o Replace the vacuum control board.
e
For instructions, see Replacing the vacuum control board on page B-80.
Error 10047 "VPS error"
The vacuum pump protection contains fluid. Vacuum buildup is not possible.
Vacuum pump protector full:
o Replace vacuum pump protector.
e
For instructions, see Replacing the vacuum pump protector on page B-78.
Vacuum pump protector empty:
o In the sensor test check the functioning of the VPS sensor and if necessary replace
it.
e
For instructions, see Replacing the vacuum pump protector on page B-78.
o Replace the vacuum control board.
e
For instructions, see Replacing the vacuum control board on page B-80.
Error 10048 "Error SS1"
The optical sample sensor at the input of the BG module could not be calibrated.
o Call up "Wash" to calibrate the sample sensor.
o Check the corresponding sample sensor in the sensor test: press [Calibrate] to
perform dry calibration. Then press [Inject bypass] / [Inject sample
distributor] and inject water through the input unit. Press [Measure]. The
measured value with liquid shoud be significantly lower than dry.
o Visually inspect the corresponding sample sensor for liquid residue.
Fluid present:
O Test corresponding valves and if necessary replace them.
e
For instructions, see Replacing the valves from sample distributor cartridge and Hb
cartridge on page B-83.
O Check tubing system for blockages and replace the relevant components.
No fluid present:
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