![ABB Endura AZ30 series Programming Manual Download Page 88](http://html.mh-extra.com/html/abb/endura-az30-series/endura-az30-series_programming-manual_274088.webp)
Endura AZ30 series integral probe and remote transmitter
Combustion oxygen monitor
9 Troubleshooting
86
COI/AZ30E–EN Rev. D
––F076.047––
INTERNAL COMMS
ERROR
Cycle power. If
problem persist
change cartridge
Temporary or permanent hardware
failure.
Switch power to transmitter off and
then on again.
If problem persists replace cartridge.
Contact local ABB service.
––F074.039––
OPTION NV MEMORY
FAILE
Cycle power.
Check & re-enter
configuration
Failure during reading of NV memory
or permanent corruption of data.
Switch power to transmitter off and
then on again.
Check and re-enter configuration
parameters.
Replace cartridge.
If problem persists contact local
ABB service.
––F072.002––
O2 SENSOR
OUT OF LIMITS
Address process
issue & check
wiring.
Process oxygen concentration
beyond sensor range.
Address process issue.
Check wiring.
If problem persists contact local
ABB service.
––F070.003––
TEMP SENSOR
OUT OF LIMITS
Check operating
conditions
Maximum temperature range for
thermocouple exceeded.
Check operating conditions.
Status
Icon
Diagnostic
Message
Possible Cause(s)
Corrective Measure(s)
Table 9.2 Diagnostics – Failure Messages (Continued)