Other Troubleshooting - ResMed Stellar 100 User Manual

Problem / possible cause
LCD: Low FiO
FiO
2
alarm level.
LCD: High FiO
FiO
2
level.
LCD: Keypad Failure!
One of the keys was held down for more
than 10 seconds or got stuck.
LCD: Attention High Temp [42, 43, 44, 45]!
The temperature inside the device is
high.
LCD: Internal Battery Use!
The device is using the internal battery.
LCD: External DC Power Use!
The device is powered by an external
battery.

Other troubleshooting

Problem / possible cause
No display
Power failure. The device stops delivering
air pressure.
Power not connected or device is not
switched on.
Treatment pressure seems low
Ramp time is in use.
Air filter is dirty.
Air tubing is kinked or punctured.
Air tubing is not connected properly.
Mask and headgear not positioned
correctly.
Plug(s) missing from access port(s) on
mask.
24
Level!
2
has dropped below the pre-set
Level!
2
has exceeded the pre-set alarm
Action
• Perform FiO sensor calibration.
2
• If the problem persists contact your
clinician.
• Perform FiO sensor calibration.
2
• If the problem persists contact your
clinician.
Remove any blockages from the keypad.
Ensure the ambient temperature
conditions are within the specified
operating range.
Check if the power cord is properly
connected to the device if you want to
run from mains power.
Press the Alarm mute button
the alarm.
Check if the AC power cord is properly
connected to the device if you want to
run from mains power.
Note: The alarm will be cleared
automatically after one minute.
Solution
Remove the mask or the catheter mount
from the tracheostomy tube until power
is restored.
Ensure the power cord is connected and
press the switch at the back of the device
once.
Wait for air pressure to build up.
Replace air filter.
Straighten or replace tubing.
Connect the air tubing firmly at both
ends.
Adjust position of mask and headgear.
Replace plug(s).
to cancel