11.01.601.7c EN
Page 32 of 40
Problem
Probable Cause
Action
Unrecoverable perfusion
Failure of device
Continue preservation using static cold storage
No power
No Power at outlet
Fuse blown
Make sure outlet has power
Call XVIVO service
Beeping or flashing
LEDs
Errors detected by the Liver Assist
Follow the instructions in 6.1, Fault Message Explanation.
Pump not working
correct
Defect pressure sensor
Air in pump head
Replace pressure sensor
Prime the pump head/disposable system
Pump is unable to reach
pressure set point
Pump is running on battery power
Make sure outlet is connected with AC power (the power
LED on the thermo unit will be unlit if no AC power is
available)
Thermo unit non-
functioning
No power at outlet
Data cable not (correctly) connected
Make sure outlet is connected with AC power (the power
LED on the thermo unit will be unlit if no AC power is
available)
Fasten the data cable connector until it holds firmly
Pump Error
Pressure sensor incorrect connected
Bad magnetic connection Pump
failure
Reconnect pressure sensor
Reconnect pump-head
Call XVIVO service
Continue preservation using static cold storage
Temperature does not
change
No water, too much air in water tubing
and thermo unit.
De-air water tubing and/or add water to thermo unit.
Missing or incorrect
display elements at
power-on
Display or internal computer failure
Power off, wait for 1 minute and power on Disconnect &
reconnect mains. Power “On”
If this does not solve the problem, call service
Leaking perfusate
Loose fitting or defective Tube set.
Retighten all fittings
Leaking thermo water
Bad connection of tubing to thermo
unit
Retighten connection
Power on, but buttons
are unresponsive
Data cable not (properly) connected to
both Liver Assist units
Liver Assist is internally locked-up
Reconnect the data cable on the back panel of the Liver
Assist
Power off, wait for 1 minute and power on Disconnect &
reconnect mains. Power “On”
No flow reading
Flow sensor wrong connected
Bad connection with tubing
Connect flow-sensor with the arrow facing the same
direction as the flow through the tube
Use ultrasound gel (or water) between sensor and tubing.
See the General Terms and Conditions accompanying the sales agreement.
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