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Problem/Possible cause
Oximeter adapter might be
faulty.
Displays message:
The power supply unit is being
covered by bedding.
The power supply unit is
overheated.
The DC plug is partially inserted
into the back of the device or
inserted too slowly.
Displays message:
General failure of the device
and/or the alarm module.
Therapy cannot be started again.
General technical specifications
Power supply
Solution
If the message appears repeatedly but the oximeter adapter is
attached properly, the oximeter adapter might be faulty.
Contact your service provider.
Check ResMed 30/90W Power Supply Unit
Make sure that the power supply unit is free from bedding, clothes
or other objects that could cover it.
Let the power supply unit cool down.
Fully insert the DC plug.
Alarm module fault, please contact service provider
Contact your service provider immediately.
90W power supply unit
Input range: 100–240V, 50–60Hz, 115V, 400Hz nominal for aircraft use
Typical power consumption: 70W (80VA)
Maximum power consumption: 110W (120VA)
30W power supply unit
Input range: 100–240V, 50–60Hz, 115V, 400Hz nominal for aircraft use
Typical power consumption: 20W (40VA)
Maximum power consumption: 36W (75VA)
90W DC/DC converter
Nominal inputs: 12V, 24V
Typical power consumption: 70W
Maximum power consumption: 110W
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