background
x
loader
Troubleshooting
arrow By ATA By Message Color By Observed Faults By CAIMS By Tips

Select color for CAS message that you wish to troubleshoot

(WARNING)
RED MESSAGE (CAUTION)
AMBER MESSAGE (ADVISORY)
CYAN MESSAGE (STATUS)
WHITE MESSAGE Require immediate crew attention. These messages are accompanied by flashing master warning, triple chime attenson with or without voice message or dedicated tone. Require immediate crew awareness and future crew action may be required in the form of alternate system selection or performance limitation. These message are accompanied by flashing master caution and a single chime. Indicate safe or normal system operation which require crew awareness, over and above the dark cockpit philosophy. Indicate minor failures or reduction in systems capability, which require no crew action.

This page includes :

For AOG assistance contact:

CRC Montreal (YUL)
Quick Links

06/10/19

Message Overview:

Fault Message:

[ACSC1-B] LH TEMP CONT VLV CMD /TCV

Fault Code:

2162320ECS

Associated CAS:

L PACK AUTO FAIL
(Caution)

L PACK FAULT
(Advisory)

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 Temperature Control Valve 1 position does not agree with the Air Conditioning System Controller (ACSC) 1 command.

Possible Causes:

  • Temperature Control Valve 1 (L23)
  • Air Conditioning System Controller (ACSC) 1 (A87)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

  • AW700-21-0160 - "PACK FAULT" CAS message while CAIMS / OMS is active (Global Express - 9002 to 9153 and Global 5000 - 9127 to 9411, 9417 to 9431, 9998 and Global Express XRS - 9159 to 9429)

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Temperature Control Valves AMM 21-52-33-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Temperature Control Valves AMM 21-52-33-400-801 [ 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 ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Perform wiring checks between Temperature Control Valve and ACSC 1.

    1. If wiring check are not good, repair the defective associated wiring and do close out.
    2. If wiring check are good, continue with next step.

  2. Swap Temperature Control Valve 1 with Temperature Control Valve 2.

    1. If system checks are good, replace Temperature Control Valve 1 and do close out.
    2. If fault remains, continue with next step.

  3. Replace ACSC 1.
  4. Do close out.

Registered and/or unregistered trademarks of Bombardier Inc. or its subsidiaries. © 2015 Bombardier Inc. All rights reserved.