FL2000/4000, Vertical/Horizontal sections of digits on display are dim or out, Replace driver


  • Vertical/Horizontal sections of digits are dim or out, other sections light up.
  • Voltage drops on the output of the transformer when plugged into the driver. Transformer outputs correctly when not plugged into the driver.
  • Swap driver out, issue follows driver. 


  • FL-2000, FL-2100, FL-2109, FL-2300, FL-4000, DF-2000, DF-2009, DF-2100, DF-2109, DF-2300, DF-4000
  • Fuelight or DataMaster
  • Gas Price or Petroleum Displays
  • FL or DF digit product


  • Driver is not outputting signal properly to the digits.


  • Replace driver.

KB ID: DD2283427

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