LTV 1100 Operator Manual - CareFusion

Symptoms Possible Causes What to Do
continued…
Ventilator won’t
exhale, repeated
HIGH PRES alarms,
turbine stops and
pressure drops, then
autocycles up to
HIGH PRES again.
Repeated
DISC/SENSE alarms.
Exhalation Drive line
occluded or pinched.
Internal problem with the
ventilator.
High or low side sense lines
disconnected from vent or
wye.
High or low side sense line
or elbow at patient wye
loose or leaking.
High or low sense lines are
occluded.
High or low sense ports in
the wye are occluded.
Ventilator is in Flow Sensor
Mode with a Non-Flow
Sensing Patient Circuit
connected.
Patient circuit disconnected
at patient, ventilator or
circuit component.
Check the exhalation drive line to be sure it
is correctly attached and secured at both
the ventilator and exhalation valve ends.
Verify the line is not occluded or pinched.
Immediately contact a certified CareFusion
service technician.
Check high and low pressure sense lines
to be sure they are correctly attached and
securely seated at both the ventilator and
wye ends.
Check the luer fitting connections for leaks.
Check the elbow connectors at the wye to
be sure they have not loosened or been
broken loose.
Verify lines are not occluded or pinched.
Check the exhalation drive line at both the
ventilator and exhalation valve ends. Verify
the line is securely seated and not leaking.
Verify that the patient circuit in use
matches the ventilator patient circuit mode
and verify the circuit is properly attached
and passes the leak test (see Chapter 12 –
Operating Procedure for additional
information).
Check the circuit and exhalation valve to
verify the circuit is securely connected and
the valve is intact. Open the exhalation
valve and remove the diaphragm. Reseat
the diaphragm and snap the valve cap
back in place. See page 13-8 for a diagram
of correct exhalation valve assembly.
21106-001 Rev. E Operator’s Manual - LTV ® 1100 Ventilator 15-19