Endura AZ series integral and remote transmitterCombustion oxygen monitor 8 TroubleshootingIM/AZ20E–EN Rev. F 798.2 Diagnostics Messages8.2.1 Failure MessagesMessage range: F100.000 to F070.003.Note. Diagnostics messages are listed in order of highest priority.StatusIconDiagnosticMessagePossible Cause(s) Corrective Measure(s)––F100.000––O2 SENSORFAILEDCheck relateddiagnosticscheck wiring.Broken sensor connection, faulty cellor electronics.Check for related diagnostics.Check wiring.If problem persists contact localABB service.––F098.001––TEMP. SENSORFAILEDCheck relateddiagnosticscheck wiringBroken sensor connection, faultythermocouple or cold junction sensor.Check for related diagnostics.Check wiring.If problem persists contact localABB service.––F096.006––ADC FAILURECycle power. Ifproblem persistschange cartridgeTemporary or permanent hardwarefailure.Cycle power to transmitter.Replace cartridge.If problem persists contact localABB service.––F094.007––SENSOR BROKENCheck wiring Cell connection is open circuit.Check wiring.Replace cell.If problem persists contact localABB service.––F092.036––NO RESPONSE FROMSENSORCheck gas pipes.Check wiringReplace cell.Test gas pipes blocked or broken,faulty cell or cell connections.Check gas pipes.Check cell wiring.Replace cell.––F090.008––THERMOCOUPLEFAILEDCheck wiringThermocouple open circuit or faulty.Check wiring.Replace thermocouple.If problem persists contact localABB service.Table 8.2 Diagnostics – Failure Messages