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(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.

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01/23/20

Message Overview:

Fault Message:

L WSHLD TEMP CNTRL INPUT POWER

Fault Code:

3040020IN

Associated CAS:

L WINDOW HEAT FAIL
(Caution)

L WSHLD HEAT FAIL
(Caution)

Reporting LRU: Left Windshield Temperature Controller (WTC)
System Description: 30-41-00
Schematic Diagram: 30-41-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 30-41-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

The Left Windshield Temperature Controller (L WTC) input power has been detected ≤50 ±10 VAC, accompanied by a loss of heat to the left windshield and left window. Inhibited during Take-off and Landing.

Possible Causes:

  • Cockpit Circuit Breaker Panel (CCBP) (A35)
  • Left Windshield Temperature Controller (L WTC) (A164)
  • Left Windshield Heater (HR9)
  • Left Window Heater (HR8)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Cockpit Circuit-Breaker Panel (CCBP) AC Circuit Breakers AMM 24-52-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Cockpit Circuit-Breaker Panel (CCBP) AC Circuit Breakers AMM 24-52-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Windshield and Side Window Temperature-Controller AMM 30-41-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Windshield and Side Window Temperature-Controller AMM 30-41-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Remove all connectors from the left WTC. Inspect connectors and pins for damage/defects.

    1. If no defects or damage is found, reconnect the WTC connectors and continue with next step.
    2. If defects or damage is found, repair/rectify as required.

  2. Perform a wiring check between Left Window and left windshield AC PWR circuit breakers (connector A35J3, located on the cockpit circuit breaker panel (CCBP)) and the left WTC (connector A164P1).

    1. If wiring defects are found, repair defective wiring as required and do close out.
    2. If no defects are found, continue with next step.

  3. Perform a 115 VAC voltage check at left window AC PWR circuit breaker (CB-F11).

    1. If 115 VAC is present, go to step 7.
    2. If voltage out of range, continue with next step.

  4. Replace the left window AC PWR circuit breaker.

    1. If system checks are good, do close out.
    2. If fault remains, continue with next step.

  5. Perform a 115 VAC voltage check at left windshield AC PWR circuit breakers (CB-H10 & CB-H11).

    1. If 115 VAC is present, go to step 7.
    2. If voltage out of range, continue with next step.

  6. Replace the defective left windshield AC PWR circuit breaker.

    1. If system checks are good, do close out.
    2. If fault remains, continue with next step.

  7. Swap WTCs and replace if necessary.
  8. Do close out.

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