On the ECAM upper display unit:

 -
the warning, MASTER SW....OFF goes off.

On the glareshield panels 130VU and131VU:

-
the MASTER CAUT lights go off.

On the ECAM upper display unit:

-
the warning,APU EMER SHUT DOWNgoes off.

On the overhead panel 25VU:
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ACTION RESULT -------------------------------------------------------------------------------
- push the APU MASTER SW pushbutton switch.  - the ON legend in the APU MASTER SWpushbutton switch comes on.
 13. On the ECAM control panel: - push the FUEL pushbutton switch. On the ECAM lower display unit:- the FUEL page comes into view.
 On the FUEL page of the ECAM lower display unit: - the APU LP fuel-valve symbol is shown in the open position.
 14. In the APU/AUTO EXTING section of panel 50VU: - push the TEST pushbutton switch.  In the APU/AUTO EXTING section of thepanel 50VU:- the ON legend in the TEST pushbuttonswitch comes on, - the OK legend in the TEST pushbutton switch comes on after approximately three seconds.
 On the APU FIRE panel 20VU: - the APU FIRE light in the APU FIRE pushbutton switch comes on.
 On the overhead panel 25VU: - the FAULT legend in the APU MASTER SW pushbutton switch comes on.
 On the glareshield panels 130VU and 131VU:
 - the MASTER CAUT lights come on, - a single chime is heard.
 On the ECAM upper display unit: - the warning, APU EMER SHUT DOWN
 MASTER SW....OFF
 comes on.
 On the FUEL page of the ECAM lower display unit: - the APU LP fuel-valve symbol is shown in the closed position. 

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ACTION RESULT -------------------------------------------------------------------------------
On the external power control panel 108VU:
 - the APU FIRE light comes on, - the ground warning horn is heard (if the circuit breaker 2WC was not
 opened).
 15. In the APU/AUTO EXTING section of panel 50VU: - push the RESET pushbutton switch.  In the APU/AUTO EXTING section of thepanel 50VU:- the ON legend in the TEST pushbuttonswitch goes off, - the OK legend in the TEST pushbutton switch goes off.
 On the APU FIRE panel 20VU: - the APU FIRE light in the APU FIRE pushbutton switch goes off.
 On the external power control panel 108VU:
 - the APU FIRE light goes off, - the ground warning horn goes off (if the circuit breaker 2WC was not
 opened).
 16. On the overhead panel 25VU: - release the APU MASTER SW pushbutton switch.  On the overhead panel 25VU:- the FAULT legend in the APU MASTER SWpushbutton switch goes off. - the ON legend in the APU MASTER SW pushbutton switch goes off.
 On the ECAM upper display unit: - the warning, MASTER SW....OFF
 goes off.
 17. On the glareshield panel 130VU or 131VU:  On the glareshield panels 130VU and131VU:
 - push the MASTER CAUT pushbutton switch. - the MASTER CAUT lights go off.
 18. On the overhead panel 25VU:  On the ECAM upper display unit: 

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ACTION RESULT -------------------------------------------------------------------------------
-push the APU MASTER SW twice  - the warning,
 (on/off) to reset the ECB APU EMER SHUT DOWN
 (59KD). goes off.

 19. On the circuit breaker panel 121VU:
 -close the circuit breaker
 APU/FUEL/LP VALVE/SPLY 2QF.

 NOTE : Close the circuit breaker 2WC if it was opened.
____
 20. On the overhead panel 25VU: - push the pushbutton APU MASTER SW to the ON position.  On the overhead panel 25VU:- the ON legend in the pushbutton APUMASTER SW comes on.
 On the FUEL page of the ECAM lower display unit: - the APU LP fuel-valve symbol is shown in the open position.
 21. On the external power control panel 108VU: - push and hold the APU SHUT OFF pushbutton switch (guarded red).  On the ECAM upper display unit:- the warning,APU EMER SHUT DOWNMASTER SW .... OFFcomes on.
 On the glareshield panels 130VU and 131VU:
 - the MASTER CAUT lights come on, - a single chime is heard.
 On the overhead panel 25VU: - the FAULT legend in the pushbutton APU MASTER SW comes on.
　
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