![Inogen One G3HF Service Manual Download Page 129](http://html1.mh-extra.com/html/inogen/one-g3hf/one-g3hf_service-manual_2064301129.webp)
Inogen One G3 Troubleshooting Guide
1
Power Fault
Expected Behavior
Abnormal Behavior
Fault
Troubleshooting & Repair
No Power
Concentrator beeps and
Inogen logo appears on the
LCD when external power
is plugged in
No response to AC power,
concentrator will not turn on
There is no 3.3V power to the processor
Check power supply power indicator
light to ensure power supply is receiving
power and functioning.
Check that the power cable is correctly
plugged into the circuit board. If
problem still exists, replace the
motherboard
Power Supply
Green light is present on
Power supply and solid
Green light is flashing
Power supply is overheated
Ensure power supply has adequate
ventilation space
Place power supply on a hard surface
instead of carpet
Green light is present on
UPS and solid
Green light is flashing
A short circuit is present
Try a different power supply on the
same concentrator to determine if the
short is in the power supply or the
concentrator. If the short is in the
concentrator replace the power input
harness or the motherboard.
Green light is present on
UPS and solid
Power is intermittent
The cable from the UPS to the concentrator
is damaged due to tightly wrapping the
cord
Wiggle and bend the cord to see if the
power to the concentrator fails. If yes,
replace the power supply
Auto Power
Concentrator runs and
charges battery on DC
automobile power
Automobile receptacle fuse
blows or overheats
The Cigarette lighter adapter plug on the
cord is set improperly
Switch the setting on the cigarette
lighter adapter plug to Wide from
Narrow
96-06434-00 Service Manual, Inogen One G3HF
- 157 -