CareFusion LTV 1200 Service Manual page 99

Symptoms
Ventilator makes a
high pitched noise
when in Standby.
Ventilator gets
excessively hot.
Ventilator does not
work with LTM
Graphics Monitor.
Page 7-22
Possible Causes
Battery charge circuit
running.
Defective or disconnected
fan.
Defective power board.
Defective thermo
conductive heat sink pads.
Patient circuit leaks.
Ventilator must run harder
to maintain PEEP.
Communications setting is
not set to MONITOR mode.
Defective connections
between the LTM Graphics
Monitor and the ventilator.
®
LTV 1200, 1150, and 1100 Ventilator Service Manual
What to Do
When the battery charge circuit is running
in bulk charge (the Charge Status LED is
amber) the ventilator may emit a high
pitched sound that some people can hear.
This is normal.
A HW FAULT alarm usually accompanies
this problem. Fan operation can be
checked by looking at it through the fan
grill on the side of the vent. If the fan is not
operating, open the ventilator and verify
that the fan connector is securely
connected to the power board.
Replace the fan assembly. See Fan
Assembly in Chapter 8 for instructions.
Replace the power board. See Power
Board Assembly in Chapter 8 for
instructions.
Open the ventilator and inspect the two
thermo conductive heat sink pads, one
attached to the back panel and one
between the turbine manifold and the
upper weldment.
Perform a Leak Test and reseat or replace
the leaking parts or connections. See
Leak Test in Chapter 2 for instructions.
Set communications setting to MONITOR
®
mode. See the LTV 1200, 1150, or 1100
Ventilator Operator's Manual, for detailed
instructions.
Check the Communications Data Cable
connection between the ventilator's
communications port and the LTM
Graphics Monitor's Data Port. See the LTM
Graphics Monitor Operator's Manual, for
detailed instructions.
p/n 18603-001, Rev. J