LT-2329
16
TROUBLESHOOTING
TROUBLESHOOTING CHART E
Visible Alarm Audible Alarm Compressor
ON ON ON
OTHER SYMPTOMS POSSIBLE CAUSE POSSIBLE REMEDY
Fluctuating or no ow System pressure below 20 psi (138 kPa) due to:
1. Leak in system 1. Check for leaks in all hoses and ttings
2. Defective compressor 2. Replace compressor
TROUBLESHOOTING CHART F
Visible Alarm Audible Alarm Compressor
See Below See Below ON
OTHER SYMPTOMS POSSIBLE CAUSE POSSIBLE REMEDY
No OSD lights are illuminated. Defective OSD/PC Board. Check concentration with an oxygen analyzer. If the concentration is
within specification, replace the PC board.
Yellow Low Oxygen Light and the Red
Service Required Light are illuminated
accompanied by a beeping audible alarm
Oxygen level is low* Check concentration with an oxygen analyzer. If the concentration is
within specication, replace the PC board. If the concentration is low,
refer to low oxygen concentration symptom in Troubleshooting Chart A.
Red Service Required light is illuminated
with beeping audible alarm.
Defective OSD Replace PC board.
Yellow Low Oxygen light is illuminated. Oxygen level is low* Check concentration with an oxygen analyzer. If the concentration is
within specication, replace the PC board. If the concentration is low,
refer to low oxygen concentration symptom in Troubleshooting Chart A.
Yellow Low Oxygen light is illuminated and
an intermittent audible alarm sounds every
few seconds.
Oxygen level is low* Check concentration with an oxygen analyzer. If the concentration is
within specication, replace the PC board. If the concentration is low,
refer to low oxygen concentration symptom in Troubleshooting Chart A.
*Refer to Alerts page for oxygen purity levels.
NOTE-If unit does not run or perform to specication, verify the proper AC input voltage and frequency are being used.