06/07/19
Message Overview:
Fault Message:
[ACSC1-A] LH COMPRESS DIS OVERHEAT
Fault Code:
2161515ECS
Associated CAS:
| Reporting LRU: | Air Conditioning System Controller (ACSC) 1 |
| System Description: | 21-52-00 |
| Schematic Diagram: | 21-52-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 21-52-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
The Compressor-Discharge Temperature has been detected in an overheat condition.
Possible Causes:
- Air Conditioning System Controller 1 (A87)
- Air Cycle Machine
- Compressor Discharge Temperature Sensor 1 (E31)
- Pack Inlet Flow Sensor 1 (MT66)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin:
- AW700-21-0160 - "PACK FAULT" CAS message while CAIMS / OMS is active (Global Express / XRS - 9002 to 9312, 9314 to 9380, 9384 to 9429 and Global 5000 - 9127 to 9383, 9389 to 9400, 9404 to 9431 and 9998)
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Removal of the Air Cycle Machines | AMM 21-52-09-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Air Cycle Machines | AMM 21-52-09-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Condenser/Reheater Units | AMM 21-52-21-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Condenser/Reheater Units | AMM 21-52-21-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Pack Discharge Temperature-Sensors | AMM 21-52-37-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Pack Discharge Temperature-Sensors | AMM 21-52-37-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Air-Conditioning System Controllers | AMM 21-60-21-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Air-Conditioning System Controllers | AMM 21-60-21-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Access to System Diagnostics | AMM 45-45-00-970-804 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Air Cycle Machines | CMM 21-52-09 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Access Systems Diagnostics and see if sensor data is valid and compare with opposite side.
- If data is not valid, go to step 5.
- If data is valid, continue with next step.
- Check Ram Air intake duct and Main Heat Ex-changer for FOD.
- Perform leak check of the pack and sense lines.
- Perform torque check of the ACM.
- Swap Pack Inlet Flow sensor 1 with Pack Inlet Flow sensor 2.
- If system checks are good, replace Pack Inlet Flow sensor 1 and do close out.
- If fault remains, continue with next step.
- Perform a wiring checks of circuit between sensor and ACSC 1.
- If wiring checks are not good, repair the defective associated wiring and do close out.
- If wiring checks are good, continue with next step.
- Replace compressor discharge temperature sensor 1.
- Do close out.