NOCO GX Industrial Battery Chargers Error LEDs

Error LED Is Illuminated or Flashing

The flashing LEDs on your charger indicates an Error Condition. Read below for a quick guide on the Error Conditions on the GX Series Industrial Chargers.

Understanding Advanced Diagnostics.

Advanced Diagnostics is used when displaying Error Conditions. It will display a series of blink sequences that help you identify the cause of the error and potential solutions. All Error Conditions are displayed with the Error LED and Standby LED flashing back and forth. The number of flashes between each pulse denotes a potential Error Condition (except reverse polarity and low-voltage battery).

Error

          Reason/Solution

Single Flash

Battery will not hold a charge. Have battery checked by a professional.

Double Flash

Possible battery short. Have battery checked by a professional.

Triple Flash

Battery voltage is too high for the selected charge mode. Check the battery and charge mode.

Quadruple Flash

Abnormal AC grid power: VAC <85V or >250V, or Frequency <45Hz or >65Hz.

Error LED Solid Red

Reverse polarity. Reverse the battery connections.

Standby Solid Orange  

Battery voltage is too low for charger to detect. Verify connection and mode selection, if still not working use Supply Mode to raise battery voltage. 
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