Roche Diagnostics May 2009
D-46 Service Manual · Version 9.0
7 Troubleshooting cobas b 221 system
Module stops
Error 20083 "MSS pol. not ok"
The MSS polarization was canceled.
o Repeat MSS polarization.
Error 20084 "HW test error MSS"
An error was recognized in a hardware component of the MSS measuring chamber.
o Call up General hardware test and replace damaged parts.
h [System] > [Diagnostics] > [General hardware test].
Error 20085 "Pack S3 empty"
S3 Fluid Pack A is empty.
o Install a new S3 Fluid Pack A.
o If the error persists, download service log file and send instrument for repair.
e
For instructions, see Service log file export on page B-12.
Error 20086 "Flap S3"
The docking mechanism S3 is open.
o Check docking mechanism S3 again. Open and close several times.
o Replace docking mechanism S3.
e
For instructions, see Replacing the docking mechanisms S2 and S3 (fluid packs) on
page B-70.
Errors 20087...20089 "MSS temperature nOk"
The temperature of the MSS measuring chamber falls outside the specified range.
o Turn the instrument off, wait at least 3 minutes, and turn it back on.
o Call up component test and check the MSS temperatures.
h [System] > [Component test] > [Control sensors] > [Temperature control] >
[Temperatures MSS].
MSS temperatures not ok –
O Replace MSS measuring chamber.
e
For instructions, see Replacing the MSS measuring chamber on page B-44.
o Check cable press fit of the MSS connector cable on the mainboard for damage.
e
For details, see Figure Mainboard connectors on page B-90.
o Replace the mainboard unit.
e
For instructions, see Replacing the Mainboard unit on page B-89.
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