DeVilbiss 525DS - Troubleshooting Chart E; Troubleshooting Chart F

LT-2023
12
TROUBLESHOOTING
TROUBLESHOOTING CHART F
Visible Alarm Audible Alarm Compressor Power Light
See below See below ON ON
Other Symptoms Possible Cause Possible Remedy
No OSD lights are illuminated. Defective OSD. Check concentration with an oxygen analyzer.
If the concentration is within specification, replace
the PC board.
NoOSDlightsareilluminated, Oxygenlevelislow* Checkconcentrationwithanoxygenanalyzer.
but red “Service Required” light is If the concentration is within specification, replace
illuminated accompanied by a the PC board. If the concentration is low,
beeping audible alarm. refer to low oxygen concentration
symptom in Troubleshooting Chart A.
Both OSD lights are illuminated. Defective OSD Replace PC board.
YellowLowOxygenlight Oxygenlevelislow* Checkconcentrationwithanoxygenanalyzer.
is illuminated. If the concentration is within specification, replace
the PC board. If the concentration is low, refer to
low oxygen concentration symptom in
Troubleshooting Chart A.
YellowLowOxygenlight Oxygenlevelislow* Checkconcentrationwithanoxygenanalyzer.
is illuminated and an intermittent If the concentration is within specification, replace
audible alarm sounds every the PC board. If the concentration is low, refer to
few seconds. low oxygen concentration symptom in
Troubleshooting Chart A.
*RefertoSpecificationspageforoxygenpuritylevels.
TROUBLESHOOTING CHART E
Visible Alarm Audible Alarm Compressor Power Light
ON ON ON ON
Other Symptoms Possible Cause Possible Remedy
Fluctuating or no flow System pressure below 9 psi (62.1 kPa) due to:
1. Leak in system 1. Check for leaks in all hoses and fittings
2. Defective compressor Replace compressor