12
14. Fault Codes &Troubleshooting Guide
This section includes a list of Frequently Asked Questions for problems you may encounter with
the RAD-0002 O2 Monitor.
No
LCD
Fault
Icon
Description
(of the fault)
SEU Indication RDU Indication
Suggested Actions
1
Er3
The ambient
temperature has
exceeded the
temperature range
32°F to 122°F
(0°C to 50°C)
“Er3” flash, Fault
LED blink
“Er3” flash, Fault
LED blink
This error will disappear
when the temperature
returns to the range
between 32°F to 122°F
(0°C and 50°C)
2
Er5
EEPROM System
Problem
“Er5” flash, Fault
LED blink
“Er5” flash,
Fault LED blink
Power on again or press
reset button, if the “Er5”
always appear, please
contact with the local
dealer.
3
Er7
Internal Data
Transmission
Error
“Er7” flash, Fault
LED blink,
“Er7” flash, Fault
LED Blink
Check the RJ45 plug is
connected into the INPUT
port of RDU, if the “Er7”
displays on the RDU only.
Press reset button on
SEU or power on again
15. Support & Warranty
Contact us: We’re here to help!
If the troubleshooting guide above doesn’t help you solving your problem or for more
information, please contact us at:
[email protected]
(386) 256-4910 (M-F 9:00am
–5:00pm EST)
See CO2Meter, Inc. Terms & Conditions at,
www.CO2Meter.com/pages/terms-conditions
CO2Meter, Inc.
131 Business Center Drive
Ormond Beach, FL 32174
Updated: 06622 - MM
