11
14. Fault Codes &Troubleshooting Guide
This section includes a list of Frequently Asked Questions for problems you may encounter with
the RAD-0102-6 CO2 Monitor.
No
LCD
Fault
Icon
Description
(of the fault)
SEU
Indication
RDU
Indication
Suggested Actions
1 Er3
Ambient
temperature
exceeded the
temperature range
0°C to 50°C (32°F to
122°F)
“Er3” flash,
Fault LED blink
“Er3” flash,
Fault LED blink
This error will disappear
when the temperature
returns to the range
between 0°C and 50°C
(32°F to 122°F)
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 CO2Meter.
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 cycle the
unit
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 using the information below.
Support@CO2Meter.com
(386) 256-4910 (M-F 9:00am–5:00pm EST)
www.CO2Meter.com
CO2Meter, Inc.
131 Business Center Drive
Ormond Beach, FL 32174
Phone: 386-872-7665 | Fax: 866-422-2356
Email: Sales@CO2Meter.com
Ref. No.:062017
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