Roche cobas b 221 system

Roche Diagnostics May 2009
Service Manual · Version 9.0 D-15
cobas b 221 system 7 Troubleshooting
System stops
Error 10010 "Current overload valve bus"
A component on the valve bus has a short circuit.
o Call up general hardware test.
If the general hardware tests interrupts at beginning:
o Replace power supply.
e For instructions, see step 2 of Removing the rear panel on page B-20.
o Visually check the valve bus cable and all cable plugs.
o At the ready screen, press h [System] > [Component test] > [Valves].
o Perform component tests for all valves:
O Perform "Load test": the valve is switched several times.
O Perform "Switch": the valve position is changed.
Note the switching noise of the valve and verify the switching optically if possible.
If the system stop persists when testing a specific valve, replace the valve.
Error 10011 "Database not ready"
The database is not ready.
o Wait some minutes if the error occurs during warmup.
o Turn the instrument off, wait at least 3 minutes, and turn it back on.
Error 10012 "µC memory overrun"
A microcontroller memory overflow was detected.
o Turn the instrument off, wait at least 3 minutes, and turn it back on.
Error 10016 "Bottle compartment cover open"
The bottle compartment cover is open.
o If the bottle compartment cover is closed: Check function of micro switch module
(micro switch, cabling and plugs) and replace if necessary.
e For instructions, see Replacing the micro switch module on page B-71.
Error 10017 "Bypass wash error 1"
Sample sensor SS2 recognizes too less air during the wash procedure.
o Call up "Wash" again.
h At the system stop screen, press [Wash].
o Clean the moisture trap at the T&D tubing.
o Replace the T&D tubing set.
e For instructions, see Replacing the T&D tubing set on page B-27.