Operator’s Manual LTV
®
Series ventilator Page 15-3
p/n 10664, Rev. Y
Symptoms Possible Causes What to Do
Control display
flashing when setting
a control.
Control setting is
limited.
A control's value may be limited by the current
settings of other controls. (See page 5-6 for an
explanation of Control Limiting.)
A display or LED
does not illuminate.
Internal problem with
the ventilator.
Do a display test (see page 11-4 for instructions.)
If the display or LED does not illuminate,
immediately contact a certified Pulmonetic
Systems’ service technician.
Displays are blanked
while on battery power.
To conserve battery life while running from the
internal battery, most of the displays are turned
off when no changes are made to the control
settings for 60 seconds. To turn the displays
back on, touch any control or button or turn the
Set Value knob.
Ventilator is running
but displays are
turned off.
Internal problem with
the ventilator.
Do a display test (see page 11-4 for instructions.)
If the display or LED does not illuminate,
immediately contact a certified Pulmonetic
Systems’ service technician.
Control not active in
selected mode.
If a control is dimmed, it is not active in the
currently selected mode and changing it's setting
does not affect ventilation. (See page 5-5 for an
explanation of Bright, Dim and Blank Control
Displays.)
Controls are locked. If the controls are locked, a LOCKED message
will be displayed when a control is selected.
To unlock in EASY mode, push the Control Lock
button. To unlock in HARD mode, push and hold
the Control Lock button for 3 seconds. (See page
10-15 for an explanation of the CTRL UNLOCK
feature and Control Lock button.)
Control is not selected. Before a control value can be changed, the
control must be selected. To select a control,
push the associated button. When a control is
selected it is displayed at normal intensity and all
other controls are dimmed. (See page 5-2 for an
explanation of how to use the controls.)
Controls are limited. A control's value may be limited by the current
settings of other controls. To change the value of
the current control, change the value of the
flashing controls. (See page 5-6 for an
explanation of Control Limiting.)
A control doesn't
operate.
Set Value knob
doesn't operate.
Internal problem with
the ventilator.
Do a control test (see page 11-6 for instructions).
If the control does not operate, immediately
contact a certified Pulmonetic Systems’ service
technician.
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