Roche cobas b 221 system

Roche Diagnostics May 2009
D-130 Service Manual · Version 9.0
7 Troubleshooting cobas b 221 system
Important test routines
Remedy: o Check plug and cable of valve.
o Replace valve.
o Replace FMS control board.
VMIX
Error message: Valve MIX nOk –
Remedy: o Check plug and cable of valve.
o Replace valve.
o Replace FMS control board.
PP Main
Stepper motor main pump
Error message: Main pump nOk –
Remedy: o Check plug and cable of main pump.
o Replace main pump.
o Replace mainboard.
PP MSS
Stepper motor PP_MSS1 (In)
Error message: MSS pump 1 nOk –
Remedy: o Check plug and cable of MSS input pump.
o Replace MSS input pump.
o Replace mainboard.
Stepper motor PP_MSS2 (Out)
Error message: MSS pump 2 nOk –
Remedy: o Check plug and cable of MSS output pump.
o Replace MSS output pump.
o Replace mainboard.
Vacuum pump
V13
Error message: Valve 13 nOk –
Remedy: o Check plug and cable of valve.
o Replace valve.
o Replace vacuum control board.