Thermo Scientific A44769, User Manual

Page: 114 / 132

(continued)
Component Fault Corrective action
Door
Door won’t unlock Check instrument status and that the door unlock
button is illuminated
Note: for instructions on how to open the door
manually to retrieve a Single-Use Kit or perform
maintenance, see “Open the door without power”
on
page 111 .
Door won’t lock Depress door fully
Check that the KSingle-Use Kit has been correctly
loaded with tubing retained in tube tracks
Check for obstructions
Pinch valves Valves not fully closing Perform Single-Use Kit loading and unloading
sequence multiple times, (see “Kit preparation,
loading and removal”
on page 43 ).
Valves slow to close Replace Single-Use Kit and check performance
Loud audible noise when
valves close
Replace Single-Use Kit and check performance
Moisture detector
Leaking Kit Replace Single-Use Kit
Wipe internal surface of centrifuge housing with a
soft cloth or dry paper towel and restart Instrument.
External spill Wipe internal surface of centrifuge housing with
a soft cloth or dry paper towel and restart the
instrument.
Concentrate output
volume Incorrect volume or
highly variable output
volume
Check that your priming sequence eliminates air
from fluid lines in the concentrate output path.
Check pump calibration
Check that there isn't any flow restriction in the
output line.
Note: If delivering into a syringe, friction between
the syringe barrel and the plunger can affect the
output volume.
Note:
Some faults may be rectified by rebooting the instrument. To do this, turn the power off using
either the mains switch or on/off switch on the rear of the instrument, wait 2 minutes and then turn
power back on as described in “Power instrument “On””
on page 18 .
Chapter 6
Troubleshooting
Power and fuses
6
114
CTS ™ Rotea ™ Counterflow Centrifugation System User Guide