Troubleshooting
27
Pressure limit (P
max
) not in
order
Incorrect setting selected on device
Make correct setting (Chapter 6.5 of
operating instructions)
Patient valve not in order
Check membranes and O-ring,
replace if necessary (Chapter 6.7 of
operating instructions)
Patient valve or test bag not correctly
connected
Check hose connections and test
bag
V
t
not in order
See fault “V
t
not in order”
Hose connections in device not in
order
Check hoses, replace if necessary
Pressure sensor on board is faulty
Change board
Pressure measurement connection
blocked
Alarms ( acoustic) not
in order
LED’s do not light up
Change board
Incorrect indication (Stenosis/
Disconnection)
Check settings, check hose
connection to patient valve (Chapter
6.7 of operating instructions)
No visual or acoustic alarm
Board defective
Change board
No acoustic alarm
Alarm mute pressed?
Wait for between 30
–
120
s
Speaker defective
Replace speaker
Alarm <
2.7
bar although
pressure present
Pressure sensor defective
Change board
Hose connections in device not in
order
Check hoses, replace if necessary
Alarm
Battery failing
Change main battery
and replace if
necessary
Pressure inlet leaking
Angled connector in device is loose
or defective
Hose system in device is
leaking
Check hoses, replace if necessary
Pressure sensor on board is
leaking
Change board
Change fascia film
Pneumatic block leaking
Replace pneumatic block
Frequencies not in order
Potentiometer wrongly adjusted
Potentiometer defective
Replace pneumatic block
Test bag is not filled
sufficiently during functional
check, Disconnection alarm
Ventilation parameters incorrectly set
Correct ventilation parameters
Patient valve not working properly
Check lip membrane
Pressure measurement tube not fitted
Fit pressure measurement tube
Fault
Cause
Remedy