Pack 1 and Pack 2 Inoperative

TASK 21-61-00-810-807-A
Pack 1 and Pack 2 Inoperative

1. Possible Causes

DITCHING pushbutton switch (13HL)
wiring

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 21-61-00-810-801-A	Pack 1 Overheat
TSM TASK 21-61-00-810-802-A	Pack 2 Overheat
TSM TASK 21-61-00-810-803-A	Pack 1 Fault
TSM TASK 21-61-00-810-804-A	Pack 2 Fault
ASM 215501
AMM 21-61-00-710-001	Operational Test of the Pack Temperature-Control System

3. Fault Confirmation
Subtask 21-61-00-710-062-A ** ON A/C NOT FOR ALL

A. Do the operational test of the pack temperature-control system AMM 21-61-00-710-001.

NOTE: If a fault is detected, the PC gives a fault code for shop maintenance in addition to the related CFDS message(s) (refer to TSM chapter 21-63-00, page block 301).

Subtask 21-61-00-710-062-B ** ON A/C NOT FOR ALL

A. Do the operational test of the pack temperature-control system AMM 21-61-00-710-001.

4. Fault Isolation
Subtask 21-61-00-810-075-A

A. If the FAULT legend on the pushbutton switch PACK 1 and the OFF legend on the pushbutton switch PACK 2, which are installed on the panel 30VU, come on:

do the trouble shooting procedures for the pack 1 fault (Ref. TSM TASK 21-61-00-810-803).
make sure that the pushbutton switch PACK 2, which is installed on the panel 30VU, is in the on position (with the FAULT and OFF legends off).

(1) If the OFF legend on the pushbutton switch PACK 2, which is installed on the panel 30VU, goes off, but on the ECAM upper DU the warning AIR PACK 2 OVHT comes on:

do the trouble shooting procedures for the pack 2 overheat (Ref. TSM TASK 21-61-00-810-802).

Subtask 21-61-00-810-076-A

B. If the FAULT legend on the pushbutton switch PACK 2 and the OFF legend on the pushbutton switch PACK 1, which are installed on the panel 30VU, come on:

do the trouble shooting procedures for the pack 2 fault (Ref. TSM TASK 21-61-00-810-804).
make sure that the pushbutton switch PACK 1, which is installed on the panel 30VU, is in the on position (with the FAULT and OFF legends off).

(1) If the OFF legend on the pushbutton switch PACK 1, which is installed on the panel 30VU, goes off, but on the ECAM upper DU the warning AIR PACK 1 OVHT comes on:

do the trouble shooting procedures for the pack 1 overheat (Ref. TSM TASK 21-61-00-810-801).

Subtask 21-61-00-810-261-A

C. If the FAULT legend on the pushbutton switches PACK 1 and PACK 2, which are installed on the panel 30VU, come on:

replace the DITCHING pushbutton switch (13HL).

(1) If the fault continues:

do a check and repair the wiring from the DITCHING pushbutton switch (13HL) to the circuit breaker (1HZ), via the the relay (3HZ) ASM 215501.

Subtask 21-61-00-710-063-A

D. Do the test as given in the Para. 3.A.

5. Close-up
Subtask 21-61-00-860-056-A

A. Put the aircraft back to its initial configuration.

[Rev.8 from Aug 2018] 2026.04.04 04:24:52 UTC