AIRTRONICS D2 - Page 18

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REVISION LEVEL A - 09/09/15
FAULT CODE / TROUBLESHOOTING
18
064 - OPEN CIRCUIT - FLAME SENSOR
1. Open Airtronic shell and remove ECU from casing. Install test sensor, clear codes and run unit.
2. If problem is resolved leave sensor in and restart troubleshooting.
3. If problem persists install test ECU, clear codes and run unit.
4. If problem is resolved install old sensor, leave in ECU, clear codes and restart troubleshooting.
If problem persists contact tech support at 800-387-4800.
065 - SHORT CIRCUIT - FLAME SENSOR
1. Open Airtronic shell and remove ECU from casing.
2. Disconnect green connector from ECU. If fault Code 064 is displayed, replace combination sensor (ame/temperature).
3. If fault Code 065 is still displayed, replace ECU.
071 - OPEN CIRCUIT - OVERHEAT SENSOR
1. Open Airtronic shell and remove ECU from casing. Install test sensor, clear codes and run unit.
2. If problem is resolved leave sensor in and restart troubleshooting.
3. If problem persists install test ECU, clear codes and run unit.
4. If problem is resolved install old sensor, leave in ECU, clear codes and restart troubleshooting.
If problem persists contact tech support at 800-387-4800.
072 - SHORT CIRCUIT - OVERHEAT SENSOR
1. Open Airtronic shell and remove ECU from casing.
2. Disconnect blue connector from control unit.
3. If fault Code 071 displayed, replace combination sensor (ame/temperature).
4. If fault Code 072 is still displayed, replace control unit.
074 - CONTROL BOX DEFECT
1. Overheating threshold value is not detected by ECU, replace ECU.
090 - CONTROL UNIT DEFECTIVE **
091 - EXTERNAL VOLTAGE DISTURBANCE ** (MAINTENANCE)
1. Check vehicle charging system. Poor battery, battery charger, eliminate fault.
092 - 103 - CONTROL UNIT DEFECTIVE **
** Disconnect heater from power for 10 seconds by disconnecting the 14 pin connector at the heater or pull the 20 amp fuse. Reconnect and test again. If the
problem persists, test the heater using an external power source other than the vehicle (known good battery only). These faults are common to a bad power
supply, attached charger or dead cell in a battery.
If problem persists install test control unit, clear codes and run unit.
Contact tech support at 1-800-387-4800.