"AFF" during boot-up on all signs; Failed receiver board

Potential Symptoms

  • AFF shows on all displays in boot-up sequence.
  • No communication with key fob remote.


  • Product Family: Digit and price displays
  • Product: FL-3000, FL-4500
  • Component: Key fob remote, RC-50
  • Control System: FLR3-100, FLR3-400


  • Failed receiver board.


  • Replace receiver board.

KB ID: DD3389851

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