Troubleshooting Hub - Significantly reduced signal distance issues with the FLR-100 or FLR3-100 system


  • How do I troubleshoot a limited range issue with the FLR-100 or FLR3-100 system?
    • Customer may only be able to change prices from a short distance away, such as 10-20’ or less.


  • How do you know you have a limited range issue?
    • This communication option should communicate up to about 100ft away if installed properly.  If the distance for communicating is 20ft or less we are experiencing a limited range issue.
    • Take the key fob up to the display (may need to get right next to the antenna (within a few inches) and try changing prices.  If the prices change at that point we are experiencing a limited range issue.


  • Product Family: Digit and Price Displays
  • Product: Fuelight & DataMaster, Petroleum Price Display, FL & DF digit product
    • FL-2000, FL-2100, FL-2300, FL-4000, DF-2000, DF-2009, DF-2100, DF-2109, DF-2300, DF-4000, FL-3000, FL-4500, Gas Price or Petroleum Price Display, FL or DF digit product
  • Component: Key Fob, Handheld, Remote
  • Control System: FLR-100/RC-50 (Wireless Communication Option), FLR3-100


Multiple factors can cause a reduction in distance.  It’s important to not jump to one conclusion, but research and consider all possibilities.  Possible causes include, but are not limited to:

  1. Interference
    1. Ballast or fluorescent bulb failure.
    2. Power lines.
    3. Plastic cover in front of display.
  2. Receiver module or antenna not installed properly.
  3. Line of sight issue.
  4. Battery in the remote needs to be replaced.
  5. Hardware Failure.

KB ID: DD1707361

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