Provider's Notes; Troubleshooting - DeVilbiss 525 Series Instruction Manual

pRovIdER's NotEs

In case of a change of patient, the device must be reconditioned to protect the user. Reconditioning must only be carried out by the manufacturer or service provider.
DeVilbiss Healthcare recommends the following as minimum between-patient maintenance. If the unit is due for periodic provider maintenance, those items should be
completed in addition to the list below.
1. Discard oxygen tubing, cannula/mask, oxygen outlet connector, and humidifier bottle.
2. Replace the cabinet air filter.
3. Clean the concentrator cabinet.
4. Inspect all plugs, cords, and components. Replace any damaged or worn components.
5. Check oxygen concentration. If the unit falls within specification, the extended life intake bacteria filter does not need to be replaced between patients. If the concentration
is not within specification, refer to troubleshooting.
6. If the device has been exposed to contagious pathogens, it should be discarded.

tRoubLEshootING

The following troubleshooting chart will help you analyze and correct minor oxygen concentrator malfunctions. If the suggested procedures do not help, switch to your reserve
oxygen system and call your DeVilbiss homecare provider. Do not attempt any other maintenance.
WARNING
To avoid electric shock hazard, do not remove the cabinet. The cabinet should only be removed by a qualified DeVilbiss homecare technician.
minor troubleshooting chart
SymPTOm
A. Unit does not operate. Power light is off when the
power switch is "On." Audible alert is pulsing and
Service Required light is flashing.
B. Unit operates, the Power light is on when the
power switch is "On." Red Service Required light
is illuminated. Audible alert may be sounding.
C. Unit operates, the power light is on when power
switch is "on," audible low-frequency vibration
sound is detected.
D Both the green Normal Oxygen and the yellow
Low Oxygen lights are either on or off.
E. Yellow Low Oxygen light is on or the yellow Low
Oxygen light is on and the intermittent audible
signal is sounding.
F Red Service Required light is on and an
intermittent audible signal is sounding.
G. If any other problems occur with your oxygen
concentrator.
EN - 6
POSSIBLE CAUSE
1. Power cord not properly inserted
into wall outlet.
2. No power at wall outlet.
3. Oxygen concentrator circuit
breaker activated.
1. Air filter is blocked.
2. Exhaust is blocked.
3. Blocked or defective cannula, face
mask, or oxygen tubing.
4. Blocked or defective humidifier
bottle.
5. Flow meter set too low.
1. OSD malfunction.
1. Flow meter is not properly set.
2. Air filter is blocked.
3. Exhaust is blocked.
1. Flow meter is not properly set.
2. Air filter is blocked.
3. Exhaust is blocked.
REmEDy
1. Check power cord connection at the wall outlet. On 230 volt units, also
check the mains connection on the back of the unit.
2. Check your home circuit breaker and reset if necessary. Use a different
wall outlet if the situation occurs again.
3. Press the concentrator circuit breaker reset button located below the
power switch. Use a different wall outlet if the situation occurs again.
If the above remedies do not work, contact your DeVilbiss provider.
1. Check the air filter. If the filter is dirty, wash it following the cleaning
instructions on page 5.
2. Check the exhaust area; make sure there is nothing restricting the unit
exhaust.
3. Detach cannula or face mask. If proper flow is restored, clean or replace
if necessary. Disconnect the oxygen tubing at the oxygen outlet. If
proper flow is restored, check oxygen tubing for obstructions or kinks.
Replace if necessary.
4. Detach the humidifier from the oxygen outlet. If proper flow is obtained,
clean or replace humidifier.
5. Set flow meter to prescribed flow rate.
If the above remedies do not work, contact your DeVilbiss provider.
1. Turn your unit "Off." Switch to your reserve oxygen system, and contact
your DeVilbiss provider immediately.
1. Contact your DeVilbiss provider.
1. Ensure the flow meter is properly set to the prescribed number.
2. Check the air filter. If the filter is dirty, wash it following the cleaning
instructions on page 5.
3. Check the exhaust area; make sure there is nothing restricting the unit
exhaust.
If the above remedies do not work, contact your DeVilbiss provider.
1. Ensure the flow meter is properly set to the prescribed number.
2. Check the air filter. If the filter is dirty, wash it following the cleaning
instructions on page 5.
3. Check the exhaust area; make sure there is nothing restricting the unit
exhaust.
If the above remedies do not work, contact your DeVilbiss provider.
1. Turn your unit "Off." Switch to your reserve oxygen system, and contact
your DeVilbiss provider immediately.
A-525D