W DOC AIRBUS | TSM A320F

Refuel (ACT 1) - Fails To Refuel In Auto Control

TASK 28-25-00-810-811-A
Refuel (ACT 1) - Fails To Refuel In Auto Control

WARNING: OBEY THE FUEL SAFETY PROCEDURES.
1. Possible Causes
  • RELAY-HI LVL, ACT1 (53QJ)
  • FQIC [3QT]
  • aircraft wiring
  • CTL PNL-REFUEL/DEFUEL [800VU]
  • [5QU]
  • [4QU]
  • [6QU]
  • [3QU]
  • CTL PNL-REFUEL/DEFUEL (ACT) [801VU]
  • SWITCH-REFUEL VALVE CONTROL, ACT [40QU]
  • PRESELECTOR-FUEL QUANTITY, MULTI TANK [5QT]
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
TSM TASK 28-25-00-810-802-A
Refuel-Valve System Failure in Auto Control (Fails to Open)
TSM TASK 28-25-00-810-812-A
Refuel (ACT 1) - Fails To Refuel In Manual Control
AMM 12-11-28-650-003
Pressure Refuel with Automatic Control
AMM 12-11-28-650-004
Pressure Refuel with Manual Control
AMM 28-25-00-710-003
Operational Test of the Refuel System
ASM 282501
ASM 282503
ASM 282801
ASM 282803
ASM 282804
AMM 28-42-00-740-003
Interrogation of the FQIS Input Parameters Pages
ASM 284203
ASM 284210
AMM 28-42-21-000-001
Removal of the Fuel Quantity Preselector
AMM 28-42-21-400-001
Installation of the Fuel Quantity Preselector
AMM 28-42-34-000-001
Removal of the Fuel Quantity-Indicating Computer (FQIC)
AMM 28-42-34-400-001
Installation of the Fuel Quantity-Indicating Computer (FQIC)
ASM 284601
AMM 31-32-00-860-001
Procedure to Get Access to the SYSTEM REPORT/TEST Menu Page
3. Fault Confirmation
Subtask 28-25-00-710-060-A ** ON A/C NOT FOR ALL
A. Test
   (1) Make sure you obey the steps in the Pressure Refuel with Automatic Control AMM 12-11-28-650-003.
NOTE: It is not possible to refuel the ACT 1 if the P/BSW-FUEL/ACT/AUTO (24QH) is set to the FWD (pushed in), manual transfer position.
NOTE: The ACT Refuel Valve Solenoid (41QU) and the ACT 1 Inlet Valve Actuator (5QH1) will not open if the ACT 1 is full of fuel (high level sensor wet).
   (2) Do the Operational Test of the Refuel System AMM 28-25-00-710-003.
NOTE: You can get more data of the ACT System in the:
  • Description and Operation (D and O) section of the Aircraft Maintenance Manual (AMM) Chap, 28-25-00, the Refuel Defuel System
  • AMM Chap, 28-28-00, the Additional Center Tank (ACT) Transfer System
  • AMM Chap, 28-42-00, the Fuel Quantity Indicating System (FQIS)
  • AMM Chap, 28-46-00, the Fuel Level Sensing System (FLSS)
  • Aircraft Schematic Manual (ASM), Refuel/Defuel System Valve Control ACT 1 ASM 282501
  • ASM, ACT XFR System, Inlet Valve ASM 282801
  • ASM, ACT XFR System, Transfer Valve ASM 282803
  • ASM, ACT XFR System, Vent Valves ASM 282804
  • ASM, FQIS, Monitoring ASM 284210
  • ASM, FLSS, High Level Refuel Control ASM 284601.
4. Fault Isolation
Subtask 28-25-00-810-060-A ** ON A/C NOT FOR ALL
A. Procedure
   (1) If the optional PRESELECTOR is installed:
  • do the refuel from the other panel.
   (2) If the wing and center tanks fail to refuel in Auto Control:
NOTE: This procedure is for ACT 1 Auto Refuel only.
   (3) If the fault continues:
   (4) If the ACT 1 fails to refuel in manual control:
   (5) If the fault continues in Auto Control, do a check of the RELAY-HI LVL, ACT1 (53QJ) and replace if necessary ASM 284601.
   (6) If the fault continues in Auto Control:
NOTE: The Step (6) has been included as it is important to make sure the FQIC is serviceable before you start more steps.
   (7) Do the test given in Para. 3.A.(2).
   (8) If the ACT Auto Refuel operates correctly:
   (9) If the fault continues:
   (10) Make sure that the FQIC Refuel Mode is on and that all the refuel valve switches are set to NORM (as seen by the FQIC 3QT) as follows:
     (a) Do the Interrogation of the FQIS Input Parameters Page 3 AMM 28-42-00-740-003.
     (b) Examine the bit locations that follow and make sure that they all show a one (1):
  • A7 (left refuel valve switch 5QU is set to normal)
  • B7 (center refuel valve switch 4QU is set to normal)
  • C7 (right refuel valve switch 6QU is set to normal)
  • E2 (refuel switch 3QU is set to REFUEL, and FQIC refuel mode active)
  • D7 (ACT 1 refuel valve switch 40QU is set to normal).
     (c) If all the inputs are as specified:
  • go to Step (21).
     (d) If an input is not as specified, go to the Step shown in the table that follows.
BIT
IF THE BIT STATE SHOWS A ZERO (0) GO TO THE TROUBLE-SHOOTING STEP SHOWN BELOW
FQIC PIN MONITORED
A7
(11)
C-8A
B7
(13)
C-9B
C7
(15)
C-8B
E2
(17)
C-8E
D7
(19)
C-10B
   (11) If the bit A7 is not as specified and shows a zero (0):
     (a) Do a check of the aircraft wiring ASM 282501 between:
  • the CTL PNL-REFUEL/DEFUEL (800VU) free connector 4024VC-A, pin X and the FQIC (3QT) rack connector AC, pin 8A (FQIC 28VDC NORM REFUEL L TK I/P).
     (b) Repair all the unserviceable wiring and connectors.
     (c) Do the test given in Para. 3.A.(2).
     (d) If the fault continues, replace the CTL PNL-REFUEL/DEFUEL [800VU] .
NOTE: If because of airline operational conditions it is not possible to replace the CTL PNL-REFUEL/DEFUEL (800VU) and internal Trouble-shooting is required, go to Step (12).
     (e) Do the test given in Para. 3.A.(2).
   (12) CTL PNL-REFUEL/DEFUEL PANEL (800VU) Internal Trouble-shooting for the
bit A7 failure
     (a) Do a check of ASM 282503 and replace if necessary the:
     (b) Do a check of the CTL PNL-REFUEL/DEFUEL (800VU) wiring ASM 282503 between:
  • the SW-MODE SELECT/REFUEL/OFF/DEFUEL/XFR (3QU), terminal 3B and the SW-REFUEL VALVES/OPEN/NORM/SHUT, L WING TK (5QU), terminal 1
  • the SW-REFUEL VALVES/OPEN/NORM/SHUT, L WING TK (5QU), terminal 3 and the connector 4024VC, pin X.
     (c) Repair all the unserviceable wiring and connectors.
     (d) Do the test given in Para. 3.A.(2).

End of the CTL PNL-REFUEL/DEFUEL (800VU) Internal Trouble-shooting for bit A7 failure from Step (11).
   (13) If the bit B7 is not as specified and shows a zero (0):
     (a) Do a check of the aircraft wiring ASM 282501 between:
  • the CTL PNL-REFUEL/DEFUEL (800VU) free connector 4024VC-A, pin V and the FQIC (3QT) rack connector AC, pin 9B (FQIC 28VDC NORM REFUEL C TK I/P).
     (b) Repair all the unserviceable wiring and connectors.
     (c) Do the test given in Para. 3.A.(2).
     (d) If the fault continues, replace the CTL PNL-REFUEL/DEFUEL (800VU).
NOTE: If because of airline operational conditions it is not possible to replace the CTL PNL-REFUEL/DEFUEL (800VU) and internal Trouble-shooting is required, go to Step (14).
     (e) Do the test given in Para. 3.A.(2).
   (14) CTL PNL-REFUEL/DEFUEL (800VU) Internal Trouble-shooting for the
bit B7 failure
     (a) Do a check of ASM 282503 and replace if necessary the:
     (b) Do a check of the CTL PNL-REFUEL/DEFUEL (800VU) wiring ASM 282503 between:
  • the SW-MODE SELECT/REFUEL/OFF/DEFUEL/XFR (3QU), terminal 3B and the SW-REFUEL VALVES/OPEN/NORM/SHUT, CTR TK (4QU), terminal 1
  • the SW-REFUEL VALVES/OPEN/NORM/SHUT, CTR TK (4QU), terminal 3 and the connector 4024VC, pin V.
     (c) Repair all the unserviceable wiring and connectors.
     (d) Do the test given in Para. 3.A.(2).

End of the CTL PNL REFUEL/DEFUEL (800VU) Internal Trouble-shooting for bit B7 failure from Step (12).
   (15) If the bit C7 is not as specified and shows a zero (0):
     (a) Do a check of the aircraft wiring ASM 282501 between:
  • the CTL PNL REFUEL/DEFUEL (800VU) free connector 4024VC-A, pin Z and the FQIC (3QT) rack connector AC, pin 8B (FQIC 28VDC NORM REFUEL R TK I/P).
     (b) Repair all the unserviceable wiring and connectors.
     (c) Do the test given in Para. 3.A.(2).
     (d) If the fault continues, replace the CTL PNL-REFUEL/DEFUEL (800VU).
NOTE: If because of airline operational conditions it is not possible to replace the CTL PNL-REFUEL/DEFUEL (800VU) and internal Trouble-shooting is required, go to Step (16).
     (e) Do the test given in Para. 3.A.(2).
   (16) CTL PNL-REFUEL/DEFUEL (800VU) Internal Trouble-shooting for the
bit C7 failure
     (a) Do a check of ASM 282503 and replace if necessary the:
     (b) Do a check of the CTL PNL-REFUEL/DEFUEL (800VU) wiring ASM 282501 between:
  • the SW-MODE SELECT/REFUEL/OFF/DEFUEL/XFR (3QU), terminal 3B and the SW-REFUEL VALVES/OPEN/NORM/SHUT, R WING TK (6QU), terminal 1
  • the SW-REFUEL VALVES/OPEN/NORM/SHUT, R WING TK (6QU), terminal 3 and the connector 4024VC, pin Z.
     (c) Repair all the unserviceable wiring and connectors.
     (d) Do the test given in Para. 3.A.(2).

End of the CTL PNL-REFUEL/DEFUEL (800VU) Internal Trouble-shooting for bit C7 failure from Step (15).
   (17) If the bit E2 is not as specified and shows a zero (0):
     (a) Do a check of the aircraft wiring ASM 282501 between:
  • the CTL PNL-REFUEL/DEFUEL (800VU) free connector 4024VC-A, pin <H and the FQIC (3QT) rack connector AC, pin 8E (FQIC 28VDC REFUEL SELECT I/P).
     (b) Repair all the unserviceable wiring and connectors.
     (c) Do the test given in Para. 3.A.(2).
     (d) If the fault continues, replace the CTL PNL-REFUEL/DEFUEL (800VU).
NOTE: If because of airline operational conditions it is not possible to replace the CTL PNL-REFUEL/DEFUEL (800VU) and internal Trouble-shooting is required, go to Step (18).
     (e) Do the test given in Para. 3.A.(2).
   (18) CTL PNL-REFUEL/DEFUEL (800VU) Internal Trouble-shooting for
bit E2 failure
     (a) Do a check of ASM 282503 and replace if necessary the:
     (b) Do a check of the CTL PNL-REFUEL/DEFUEL (800VU) wiring ASM 282503 between:
  • the connector 4023VC, pin <G and the SW-MODE SELECT (3QU), terminal 1D
  • the SW-MODE SELECT (3QU), terminal 3D and the connector 4024VC, pin <H.
     (c) Repair all the unserviceable wiring and connectors.
     (d) Do the test given in Para. 3.A.(1).

End of the CTL PNL-REFUEL/DEFUEL (800VU) Internal Trouble-shooting for bit E2 failure from Step (17).
   (19) If the bit D7 is not as specified and shows a zero (0):
     (a) Do a check of the aircraft wiring ASM 282501 between:
  • the CTL PNL-REFUEL/DEFUEL (ACT) (801VU) free connector 4067VC-A, pin T and the FQIC (3QT) rack connector AC, pin 10B (FQIC 28VDC NORM REFUEL I/P).
     (b) Repair all the unserviceable wiring and connectors.
     (c) Do the test given in Para. 3.A.(2).
     (d) If the fault continues, replace the CTL PNL-REFUEL/DEFUEL (ACT) [801VU] .
NOTE: If because of airline operational conditions it is not possible to replace the CTL PNL-REFUEL/DEFUEL (ACT) (801VU) and internal Trouble-shooting is required, go to Step (20).
     (e) Do the test given in Para. 3.A.(2).
   (20) CTL PNL-REFUEL/DEFUEL (ACT) (801VU) Internal Trouble-shooting for
bit D7 failure
     (a) Do a check of ASM 282501 and replace if necessary the:
  • SWITCH-REFUEL VALVE CONTROL, ACT [40QU] .
     (b) Do a check of the CTL PNL-REFUEL/DEFUEL (ACT) (801VU) wiring ASM 282501 between:
  • the connector 4067VC, pin D and the SW-REFUEL VALVE/OPEN/NORM/SHUT (40QU), terminal 1
  • the SW-REFUEL VALVE/OPEN/NORM/SHUT (40QU), terminal 3 and the connector 4067VC, pin T.
     (c) Repair all the unserviceable wiring and connectors.
     (d) Do the test given in Para. 3.A.(2).

End of the CTL PNL-REFUEL/DEFUEL (ACT) (801VU) Internal Trouble-shooting for bit D7 failure from Step (19).
   (21) If the ACT Manual Refuel operates correctly, make sure that the Preselected Fuel Quantity (PFQ) can be increased
     (a) Do a check of and replace if necessary:
  • the PRESELECTOR-FUEL QUANTITY, MULTI TANK [5QT] AMM 28-42-21-000-001 AMM 28-42-21-400-001
  • the PRESELECTOR-FUEL QTY, COCKPIT (10QT) (Ref. AMM 28422100000200) and (Ref. AMM 28422140000200) (if cockpit refuel installed).
     (b) Do a check of the aircraft wiring ASM 284203 between:
  • the PRESELECTOR (5QT) free connector 5QT-A, pin L and the FQIC rack connector AC, pin 4K (increase line)
  • and if installed the PRESELECTOR COCKPIT (10QT) free connector 10QT-A, pin L and the FQIC rack connector AC, pin 5D (increase line).
NOTE: The preselector increment line to the FQIC can also be checked using the Input Parameters Page 3 (FQIS DISCRETE INPUTS) AMM 28-42-00-740-003.
  • bit Q2 for the PRESELECTOR (5QT)
  • bit N2 for the COCKPIT PRESELECTOR (10QT) (if cockpit refuel installed).
     (c) Repair all the unserviceable wiring and connectors.
     (d) Do the test given in Para. 3.A.(2).
   (22) If the fault continues, set the MCDU to:
     (a) The SYSTEM REPORT/TEST AMM 31-32-00-860-001.
     (b) The FQIS STATUS page.
   (23) If a LRU is shown on the FQIS STATUS page, replace that LRU.
   (24) If the fault continues, do a check of the aircraft wiring ASM 282501 between:
  • the FQIC (3QT) rack connector AC, pin 10J and the RELAY-PNL (802VU) free connector 4065VC-A, pin <F (FQIC REFUEL CTL SW O/P for ACT 1).
   (25) Repair all the unserviceable wiring and connectors.
   (26) Do the test given in Para. 3.A.(2).
[Rev.8 from Aug 2018] 2026.04.04 04:28:44 UTC
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