
Endura AZ series integral and remote transmitter
Combustion oxygen monitor
8 Troubleshooting
80
IM/AZ20E–EN Rev. F
––F088.009––
THERMOCOUPLE
REVERSED
Correct wiring
Thermocouple wired incorrectly.
Correct wiring.
––F086.010––
COLD JUNCTION
FAILED
Check wiring.
Replace cold
junction sensor
Cold junction sensor in head open
circuit or faulty.
Check wiring.
Replace cold junction sensor.
If problem persists contact local
ABB service.
––F084.014––
HEATER FAILED
Check power
level at heater
connections.
Faulty heater or electronics.
Check power level at heater
connections in probe head.
If problem persists contact local
ABB service.
––F082.015––
HEATER FUSE
BLOWN
Replace fuse. If
problem persists
replace heater
Faulty heater or temporary surge.
Replace fuse – see Section
,
page
(remote transmitter) or
, page
(integral
transmitter).
Replace heater in probe.
If problem persists contact local
ABB service.
––F080.013––
HEATER TRIPPED
Wait for cell
temperature to
cool down
Maximum cell temperature exceeded.
Wait for temperature to cool down.
If problem persists contact local
ABB service.
––F078.038––
MAIN NV MEMORY
FAILED
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.
Status
Icon
Diagnostic
Message
Possible Cause(s)
Corrective Measure(s)
Table 8.2 Diagnostics – Failure Messages (Continued)