LTV 1150 - Page 100

Page 7-22 LTV
®
1200/1150 Ventilator Service Manual p/n 18603-001, Rev. C
Symptoms Possible Causes What to Do
Ventilator makes a
high pitched noise
when in Standby.
Battery charge circuit
running.
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.
Defective or disconnected
fan.
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.
Defective power board.
Replace the power board. . See Power
Board Assembly in Chapter 8 for
instructions.
Defective thermo
conductive heat sink pads.
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.
Ventilator gets
excessively hot.
Patient circuit leaks.
Ventilator must run harder
to maintain PEEP.
Perform a Leak Test and reseat or replace
the leaking parts or connections. See
Leak Test in Chapter 2 for instructions.
Communications setting is
not set to MONITOR mode.
Set communications setting to MONITOR
mode. See the LTV
®
1200 or the LTV
®
1150 Ventilator Operator’s Manual, for
detailed instructions.
Ventilator does not
work with LTM
Graphics Monitor.
Defective connections
between the LTM Graphics
Monitor and the ventilator.
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.