Error Reason / Solution
Error LED: Solid Red
Error LED: Single (1) Flash
Error LED: Triple (3) Flash
Error LED: Quadruple (4) Flash
Error LED: Quintuple (5) Flash
Hot LED: Solid
Hot LED: Flashing
Hot LED: Flashes Then All LEDs
O
Cold LED: Solid
Cold LED: Flashing
Cold LED: Flashes Then All LEDs
O
Boost Light Does Not Come On
w/Cables Connected Properly
Technical Note
Reverse polarity detected. / Reverse the battery connections.
Short Circuit detected on battery clamps. / Remove all loads, reconnect clamps to battery.
Internal master switch failure. / Ensure the voltage selection knob is correctly positioned in the 12V or
24V position.
Bad battery cell detected during charge. / Power o unit, contact NOCO support.
XGC OUT overcurrent error. / Remove load from XGC OUT, then Power “O” the unit then power “On”.
Unit is fully operational, but approaching upper temperature limit. / Allow the unit to cool.
Unit is too hot to jump start, only the flashlight is available in this state. / Allow the unit to cool.
Unit is too hot to jump start or use other functions. / Allow the unit to cool, and bring the unit into cooler
environment.
Unit is fully operational, but approaching lower temperature limit. / Allow the unit to warm up.
Unit is too cold to jump start, only the flashlight is available in this state. / Allow the unit to warm up.
Unit is too cold to jump start or use other functions. / Allow the unit to warm up, and bring the unit into
warmer environment.
Connected battery is below 3-volts / Remove all loads, and try again, or use manual override mode.
Lithium-ion batteries self warm when used. If the Cold Error LED is illuminated, attempt jump starting multiple times to warm
the battery and remove the error. Typically, 3-4 jump starts are suent to warm the battery and remove the error.
Troubleshooting
EN
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