LTV 1150 - Installing the new solenoid manifold:

Page 7-40 LTV
®
1200/1150 Ventilator Service Manual p/n 18603-001, Rev. C
Checkout Test Failures
Symptoms Possible Causes What to Do
ALARM Test
Audible alarm too loud.
Alarm volume set too high. Set the alarm volume under the Extended
Features Menu. (See the LTV
®
1200 or
the LTV
®
1150 Ventilator Operator's
Manual for an explanation of the ALARM
VOL
feature.)
Alarm volume set too low. Set the alarm volume under the Extended
Features Menu. (See the LTV
®
1200 or the
LTV
®
1150 Ventilator Operator's Manual for
an explanation of the ALARM VOL
feature.)
Defective alarm sounder. Replace the alarm sounder. (See page 8-
55 for instructions).
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.
Alarm sounder
disconnected.
Open the back of the ventilator and verify
the alarm sounder is properly connected.
(See page 8-55 for instructions).
Defective alarm sounder. Replace the alarm sounder. (See page 8-
55 for instructions).
ALARM Test
Alarm does not sound.
Defective power board. Replace the power board. (See Power
Board Assembly in Chapter 8 for
instructions).
Audible alarm did not sound
long enough before test
was terminated.
Repeat the Alarm Test and allow audible
alarm to sound for at least 2 seconds
before pushing the Select button.
Alarm Test
Confirming audible
chirp does not sound.
Defective power board. Replace the power board. (See Power
Board Assembly in Chapter 8 for
instructions)
Misaligned LED. If displays are operating but misaligned,
remove the main board and realign the
LEDs or displays. See Main Board
Assembly in Chapter 8 for instructions.
Display Test
A display or LED does
not illuminate.
Defective LED or display.
Defective main board.
If a display is not operating during the
display test, replace the main board. See
Main Board Assembly in Chapter 8 for
instructions.