FL-3000/4500, DM-100 shows Radio Port Error 255, Repair loose wiring

Potential Symptoms

  • Cannot change prices on gas price display.
  • DM-100 handheld gives a Radio Port Error 255.


  • Product Family: Digit and Price Displays
  • Product: FL-3000/4500
  • Component: J-box
  • Control System: FLR3-1500 Radios with the DM-100


  • Loose wire on TB1 of radio j-box.


  • Re-terminate loose wire.

KB ID: DD2462853

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