ECAM Indication only - AIR COND CTL 2-B FAULT

TASK 21-61-00-810-901-A
ECAM Indication only - AIR COND CTL 2-B FAULT

1. Possible Causes

wiring
CONT-AIR COND SYSTEM 2 [57HH]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 216101
AMM 21-61-34-000-002	Removal of the Air-Conditioning System Controller
AMM 21-61-34-400-002	Installation of the Air-Conditioning System Controller

3. Fault Confirmation
Subtask 21-61-00-710-198-A ** ON A/C NOT FOR ALL

A. Do a read out of the POST FLIGHT REPORT.

4. Fault Isolation
Subtask 21-61-00-810-244-A ** ON A/C NOT FOR ALL

A. If the POST FLIGHT REPORT shows the warning AIR COND CTL 2-B FAULT without any associated maintenance messages:
(1) Do a check of the wiring ASM 216101 from,

the ACSC2 (57HH/C) pin 2 to the CB (56HH) (28VDC supply) and,
the ACSC2 (57HH/C) pin 1 to the CB (54HH) (115VAC supply).
If the fault continues:
replace the CONT-AIR COND SYSTEM 2 [57HH] AMM 21-61-34-000-002 and AMM 21-61-34-400-002.

Subtask 21-61-00-710-199-A ** ON A/C NOT FOR ALL

B. Do the procedure as in Para. 3. A.

[Rev.8 from Aug 2018] 2026.04.04 04:24:58 UTC