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8.6 Humidifier chamber temperature too low
29.5°C
Cause
Remedy
Sudden change in
breathing gas flow rate�
Mute alarm and observe
whether the temperature
increases to a permissible
value�
Temperature probe is
defective�
Remove tube system and
replace temperature probe�
Breathing gas humidifier
is defective�
Remove tube system and report
to customer service�
Humidification chamber
not correctly inserted�
Correctly insert the humidifier
chamber�
Temperature fuse has
triggered�
Report to customer service�
Bottom of the
humidification chamber is
uneven�
Replace the humidification
chamber�
8.7 Temperature probe missing/defective
Possible Cause
Measures
Chamber and patient-side
temperature probe is not
connected to the device
or not plugged into the
tube�
Switch off device and leave to
cool down� Connect chamber
and patient-side temperature
probe to the device or plug
into tube opening and restart�
Connection is described in
sections 5�1 and 5�4 of the
user manual�
Defective temperature
probe�
Replace temperature probe�
No ventilation flow�
Check ventilation flow�
