9. Troubleshooting and Maintenance
ALARMS
The ConchaTherm Neptune has two alarms conditions: priority and cautionary. Priority alarms are
indicated by a red status light and an audible alarm. Clinician involvement is required to reset a
priority alarm. To reset a priority alarm, turn the unit’s power OFF, correct the alarm condition and
turn the unit’s power ON. Cautionary alarms are indicated by yellow status light and an audible
alarm. The cautionary audible alarm can be silenced by pressing the alarm mute button. The alarm
will deactivate if the alarm condition self-corrects.
PRIORITY ALARMS
(Red Status Indicator Light and Audible Alarm)
Note:
To reset a Priority Alarm, turn power OFF, correct the alarm condition and turn
power ON.
A.
HIGH TEMP:
A1.
Patient temp >43°C (Patient Temp Indicator Flashes Red):
• Airway temperature improperly set for ambient and ventilatory conditions.
Reconfirm setings are appropriate for ventilation and ambient conditions.
A2.
High temperature at column outlet (Column Temp Indicator Flashes Red):
• Low/no flow through column or reservoir, correct low/no flow condition.
• Low water level in column or reservoir, replace water reservoir and/or column.
B.
CHECK PROBE (Patient and Column Temp Indicators Flash Red)
• Temp probe dislodged or disconnected from the ventilator circuit, insert
probe securely into circuit.
• Temp probe not properly connected at the heater, properly connect probe.
• Temp probe/cable failure, replace temp probe.
• Low/no flow through column or reservoir, correct low/no flow condition.
C.
HEATED-WIRE CIRCUIT (Heated Wire Indicators flash red)
• Inspiratory and/or expiratory wire is disconnected during warm-up period
or normal operation.
• Breathing circuit may be incompatible or defective, replace the breathing
circuit with a new compatible circuit.
D.
SERVICE
• Unit failed self-diagnostic check. Turn power OFF, let the humidifier cool
and turn the power back ON. If the condition persists, remove the unit
from service.
CAUTIONARY ALARMS
(Yellow Status Indicator Light and Audible Alarm):
Note:
Press the alarm mute button to silence the Cautionary Audio Alarms for
approximately two minutes. When muted, the alarm remains activated, and the ALARM
MUTE button and Cautionary Alarm Icon are illuminated. The alarm will automatically
reset if the alarm condition “self-corrects.”
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D
C
A2
B
A1
E
F
G
