Operator’s Manual LTV
®
Series ventilator Page 15-19
p/n 10664, Rev. Y
Symptoms Possible Causes What to Do
Sense lines occluded or
pinched.
Check high and low pressure sense lines
to be sure they are correctly attached and
securely seated at both the ventilator and
wye ends.
Verify lines are not occluded or pinched.
continued…
Ventilator won’t
exhale, repeated
HIGH PRES alarms,
turbine stops and
pressure drops, then
autocycles up to
HIGH PRES again.
Internal problem with the
ventilator.
Immediately contact a certified Pulmonetic
Systems’ service technician.
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.
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.
Circuit disconnected from
patient, wye or vent.
Exhalation valve
disconnected from wye.
PEEP valve or peepless
cap disconnected from wye.
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 and
spring. Reseat the spring and diaphragm
valve and snap the peep valve or peepless
valve cap back in place. See page 13-11
for a diagram of correct exhalation valve
assembly.
Repeated
DISC/SENSE alarms.
Pressure Control or
Pressure Support set below
PEEP.
Verify the control values are appropriately
set.
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