Page 15-24 LTV
®
Series ventilator Operator’s Manual
p/n 10664, Rev. Y
Symptoms Possible Causes What to Do
Control Test
Volume / Pressure
Mode button, Pressure
Control button, O
2
%
(O
2
Flush) button, or
Low Pressure O
2
Source button do not
display message when
pushed.
Wrong model selected in
maintenance mode.
Immediately contact a certified Pulmonetic
Systems’ service technician.
Circuit connections or
accessories are leaking.
Wye is not properly capped.
Reseat or replace the leaking circuit parts,
accessories or connections. Verify the wye
is securely capped.
Leak Test
Leak test fails.
Internal problem with the
ventilator.
Immediately contact a certified Pulmonetic
Systems’ service technician.
Leak Test
Leak test fails with
LEAK --- FAIL
message.
Internal problem with the
turbine.
Immediately contact a certified Pulmonetic
Systems’ service technician.
Alarm sounder blocked. Check the alarm sounder opening in the
right side of the ventilator to verify the
opening is not blocked.
Vent Inop Alarm Test
Audible alarm too soft.
Internal problem with the
ventilator.
Immediately contact a certified Pulmonetic
Systems’ service technician.
Alarm sounder blocked. Check the alarm sounder opening in the
right side of the ventilator to verify the
opening is not blocked.
Vent Inop Alarm Test
Alarm does not sound.
Internal problem with the
ventilator.
Immediately contact a certified Pulmonetic
Systems’ service technician.
Vent Inop Alarm Test
The Vent Inop LED is
not illuminated.
Internal problem with the
ventilator.
Immediately contact a certified Pulmonetic
Systems’ service technician.
Ventilator back panel label
does not contain an audio
sound symbol (
).
This is normal. Ventilators that do not have
an audio sound symbol (
) on the back
panel label do not contain the confirming
audible chirp feature.
Audible alarm did not sound
long enough before test
was terminated.
Repeat the Vent Inop Alarm Test and allow
audible alarm to sound for at least 15
seconds before pushing the Silence/Reset
button. (See Chapter 11 - Vent Inop Alarm
Test for instructions.)
Vent Inop Alarm Test
Confirming audible
chirp does not
sound
74
.
Internal problem with the
ventilator.
Immediately contact a certified Pulmonetic
Systems’ service technician.
74
Only applicable on ventilators with an audio sound symbol ( ) on the back panel label.