LTV 1150 - Page 120

Page 7-42 LTV
®
1200/1150 Ventilator Service Manual p/n 18603-001, Rev. C
Symptoms Possible Causes What to Do
Leak Test - Hi and
Low Flow transducer
ports (in Chapter 6 –
Calibration)
Leaky or disconnected
internal tubing.
Solenoid manifold mal-
functioning
Check tubing connections. Check for leaks
in tubing. Replace damaged tubing.
Reconnect as necessary.
Replace Solenoid Manifold.
O
2
Leak Test (in
Chapter 6 –
Calibration)
Malfunctioning
O
2
Blender Replace O
2
Blender
Vent Inop Alarm Test
Audible alarm too soft.
Alarm sounder blocked.
Check the alarm sounder opening in the
right side of the ventilator to verify the
opening is not blocked.
Alarm sounder blocked.
Check the alarm sounder opening in the
right side of the ventilator to verify the
opening is not blocked.
Sounder fails to sound.
Replace sounder. (See Alarm Sounder
Assembly in Chapter 8 for instructions)
Vent Inop Alarm Test
Alarm does not sound.
Power PCBA does not drive
sounder.
Replace Power PCBA. (See Power Board
Assembly in Chapter 8 for instructions)
Vent Inop LED fails to
illuminate.
Replace Main PCBA. (See Main Board
Assembly in Chapter 8 for instructions)
Vent Inop Alarm Test
LED portion of Vent
Inop Alarm test fails.
Power PCBA does not drive
Vent Inop LED.
Replace Power PCBA. (See Power Board
Assembly in Chapter 8 for instructions)
Vent Inop Alarm Test
Vent Inop alarm
audible tone and/or
LED did not last 15
seconds (fail).
Power PCBA is defective.
Replace Power PCBA. (See Power Board
Assembly in Chapter 8 for instructions)
Vent Inop Alarm Test
Vent Inop alarm tone
and/or LED fails test.
Unknown
Discontinue use of the ventilator and
contact Pulmonetic Systems for
information.
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 Silence Reset.
(See Vent Inop Alarm Test in Chapter 2)
Vent Inop Alarm Test
Confirming audible
chirp does not sound
Defective power board.
Replace Power PCBA. (See Power Board
Assembly in Chapter 8 for instructions)
WDOG Test
Vent does not reset
when watchdog test is
performed.
Defective main board. Replace the main board. See Main Board
Assembly in Chapter 8 for instructions.