Page 37System Failure CodesOccurring less frequently than condition prompts, system failure codes require the instrument tobe switched off and then powered back up. It is possible for a failure to occur due to a transientcondition. However, if the failure persists or occurs frequently, call Arizona InstrumentCustomer Service at (800) 528-7411 or (602) 470-1414.ERROR ERROR MESSAGE TEXT MOST LIKELY CAUSE2 PC KEYBOARD COM FAIL BAD CABLE OR CONFIG3 PC KEY CONTROLLER TIMEOUT DEAD KEYBOARD5 RH SENSOR RANGE ERROR FAILED RH SENSOR6,7 FLOW SYSTEM ERROR CABLE OR SENSOR FAIL8 RH RTD RANGE ERROR CABLE OR RTD FAIL9 RH RTD RATE ERROR Sensor Block HEATER10 RH RTD TRACK ERROR Sensor Block RTD OUT OF POSITION11 BOTTLE RTD RANGE ERROR CABLE OR RTD FAIL12 BOTTLE RTD RATE ERROR BOTTLE HEATER FAILURE13 BOTTLE HEATER OVERTEMP BOTTLE HTR RTD OUT OF POSITION14 BOTTLE HTR CONTROL ERR ROOM TOO COLD15 Sensor Block RTD RANGE ERROR CABLE OR RTD FAILURE16 Sensor Block RTD RATE ERROR Sensor Block HEATER FAILURE17 Sensor Block HEATER OVERTEMP Sensor Block RTD OUT OF POSITION18 Sensor Block HTR CONTROL ERR Sensor Block HTR OUT OF POSITION19 A2D INIT FAILED COMPONENT FAILURE, MAIN BOARD20 A2D TIMEOUT ERROR COMPONENT FAILURE, MAIN BOARD21 MCU CLOCK FAIL ERROR COMPONENT FAILURE, MAIN BOARD22 COP TIMEOUT ERROR COMPONENT FAILURE, MAIN BOARD23 ILLEGAL OP CODE TRAP COMPONENT FAILURE, MAIN BOARD24 EPROM CHECK SUM FAIL COMPONENT FAILURE, MAIN BOARD25 SRAM CHECK FAIL COMPONENT FAILURE, MAIN BOARD