16
Portable Oxygen Concentrator
ALARM / INDICATORS / TROUBLESHOOTING
PM4150
Visual Indicator/
Problem
Audible Alarm
Probable Cause
Remedy
Red alarm indicator
is illuminated, unit
is not running and
setting numbers 1 &
3 are flashing
Repetitive beep
Internal battery is
outside its operating
temperature range
1. Turn off the POC and disconnect any
power supplies
2. Check that the inlet filter is clean
3. Ensure inlet and exhaust vents are not
blocked in any way
4. Verify you are operating the POC within
the specified operating temperature
range.
5. It may be necessary to allow the POC
to warm up or cool before turning back
“ON”
Red alarm indicator
is illuminated, unit
is not running and
setting numbers 1 &
4 are flashing
Repetitive beep
Motor is above its
maximum operating
temperature
1. Turn off the POC
2. Check that the inlet filter is clean
3. Ensure inlet and exhaust vents are not
blocked in any way
4. Verify you are operating the POC within
the specified operating temperature
range
5. It may be necessary to allow the POC to
cool before turning back “ON”
Red alarm indicator
is illuminated, unit
is not running and
setting numbers 1 &
5 are flashing
Repetitive beep
Pressure outside of
normal operation
1. Select the “OFF” position
2. Select the prescribed setting
3. If alarm persists, change to alternate
oxygen source and contact your
Equipment Provider
Red alarm indicator
is illuminated, unit
is not running and
setting numbers 2 &
3 are flashing
Repetitive beep
Fan malfunction
1. Select the “OFF” position
2. Select the prescribed setting
3. If alarm persists, change to alternate
oxygen source and contact your
Equipment Provider
Red alarm indicator
is illuminated, unit
is not running and
setting numbers 2 &
4 are flashing
Repetitive beep
Failed electrical
connection
1. Select the “OFF” position
2. Select the prescribed setting
3. If alarm persists, change to alternate
oxygen source and contact your
Equipment Provider
Amber alarm
indicator is flashing
and unit is running
NA
Service Needed
1. Continue to use POC
2. Contact Equipment Provider
Red alarm indicator
is flashing and unit
is running
NA
Service Needed
1. Switch to another source of oxygen
2. Contact Equipment Provider
Red Alarm and 3 &
4 Setting Numbers
Illuminated and
device Shuts Down
Single Beep
Cannula Occluded/
Kinked
1. Ensure the Cannula and/or Outlet are
Not Blocked
2. Select the “OFF” position and wait at
least 15 seconds.
3. Select the prescribed Setting
4. If Alarm persists, change to alternate
Oxygen source and Contact your
Equipment Provider.
