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Why does the Von Duprin ALK going into alarm randomly?

Following could cause the exit alarm ALK going into alarm.

  1. Defective ALK PC board part number 101030.
  2.  Bad request exit switch RX, part number 050251.
  3. If LX switch is used instead of RX, part number 050254 for 3' and 050255 for 4'.
  4. RX or LX switch may need to be adjusted. See installation instructions.

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