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

06/13/19

Message Overview:

Fault Message:

[ACSC2-B] TMP PNL CKPT SELECT /WRG

Fault Code:

2164526ECS

Associated CAS:

None

Reporting LRU: Air Conditioning System Controller (ACSC) 2
System Description: 21-60-00
Schematic Diagram: 21-60-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 21-60-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

The Cockpit Temperature SELECTOR on Bleed Air Control Panel has been detected out of range by the right Air Conditioning System Controller (ACSC).

Possible Causes:

  • Air Conditioning System Controller (ACSC) 2 (A88)
  • Cockpit Temperature SELECTOR
  • Bleed Air Control Panel (AP8)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

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 ]
Removal of the BLEED-AIR Control Panel AMM 36-11-57-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the BLEED-AIR Control Panel AMM 36-11-57-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Perform a wiring checks between ACSC 2 and the Cockpit temperature SELECTOR located on the Bleed Air Control Panel.

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

  2. Perform a wiring checks of the cockpit Temperature Control Panel.

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

  3. Measure Cockpit temperature selector potentiometer (R3) total resistance. Resistance should be 1000 ohms.
  4. Connect the Ohm meter on the potentiometer wiper. Rotate potentiometer slowly and make sure there is no dead spot on potentiometer or any other deficiencies.
  5. Replace ACSC 2.
  6. Do close out.

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