When the Starrsed has been idle for more than eight hours, there might be some backflow of reagents due to gravity. Prime all tubing before sampling by using the function:
Prime / Clean
Priming functions overview
Prime rinse solution
Prime Saline
Prime Diluent
Prime de-ionized water
Prime Disinfectant
Cleaning functions overview
Wash each pipette
Wash only sample pipettes
Wash all pipettes
Fill and clean screen
End-of-day-wash procedure