LTV 1150 - Page 112

Page 7-34 LTV
®
1200/1150 Ventilator Service Manual p/n 18603-001, Rev. C
Symptoms Possible Causes What to Do
Exhalation drive line leaking
or loose.
Exhalation valve leaking
during inspiration.
Check the exhalation drive line at both the
ventilator and exhalation valve ends. Verify
the line is securely seated and not leaking.
Verify the exhalation valve is not leaking
during inspiration. If it is leaking, open the
exhalation valve and remove the
diaphragm. Reseat the diaphragm and
snap the valve cap back in place. See
Cleaning the Exhalation Valve and
Reusable Patient Circuit in Chapter 4 for a
diagram of the exhalation valve assembly.
If necessary, replace the exhalation
diaphragm, or exhalation valve with a new
one.
Pressure Control or
Pressure Support set below
PEEP.
Verify these control values are
appropriately set.
Internal flexible tubing
occluded or pinched.
Internal flexible tubing has
pinhole leaks or leaking at
connections.
This problem will often be accompanied by
XDCR FAULT alarms. Open the vent and
verify that none of the flexible tubes
connected to the solenoid manifold or
analog board are pinched or leaking. See
Internal Flexible Tubing in Chapter 8 for
routing information.
Defective transducer on
analog board.
Replace the analog board. See Analog
Board Assembly in Chapter 8 for
instructions.
CONTINUED …
Repeated
DISC/SENSE alarms.
Defective auto zero
solenoid.
Replace the solenoid manifold. See
Solenoid Manifold Assembly in Chapter 8
for instructions.
Internal flexible tubing
occluded or pinched.
Internal flexible tubing has
pinhole leaks or leaking at
connections.
This problem will often be accompanied by
XDCR FAULT alarms. Open the vent and
verify that none of the flexible tubes
connected to the solenoid manifold or
analog board are pinched or leaking. See
Internal Flexible Tubing in Chapter 8 for
routing information.
Defective transducer on
analog board.
Replace the analog board. See Analog
Board Assembly in Chapter 8 for
instructions.
Repeated XDCR
FAULT alarms.
Defective auto zero
solenoid.
Replace the solenoid manifold. See
Solenoid Manifold Assembly in Chapter 8
for instructions.