Rev. 1
Page 3-
27
A 023
LCD INDICATION Alarm description Effect/Signaling
Possible cause / Check
Proposed solution
LOCKING
PROBLEM
Failure on the micro-
switches (ON-ON).
During the initial self test the
two micro-switches are OFF
Blackout during the opening
Power supply problem during the opening .
Go to Attachment H or Attachment I
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