Total Source ELP15EULIT, Operating Manual

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12.2. Error messages
Error messages can be found in two ways: by reading the appropriate display on the handset
display or by observing the fault codes indicated by the status LEDs.
Handset display diagnostics
Faults are displayed in the faults menu.
LED diagnostics
During normal operation, with no faults present, the status LED is constantly lit. If the
controller detects a fault, the status LED continuously flashes a fault identification code until
the fault is corrected. The status LED uses a 2-digit code.
In the table below, you can find the different error messages and their possible solutions.
Here is an example of how you can read this message for code 1,4 ‘undervoltage fault’.
LED 1 LED 2 Error message Explanation Possible cause
1 1 Thermal fault Over-/under-temperature
cutback.
Temperature should be between
−10 °C and 80 °C.
Excessive load on vehicle
Operation in extreme
environments.
Electromagnetic brake not
releasing.
1 2 Throttle fault PotLow and/or PotWiper out of
range.
Throttle input wire open or
shorted.
Throttle pot defective.
Wrong throttle type selected.
1 3 Speed pot fault Speed limit pot wiper out of
range.
Speed limit pot wire(s) broken or
shorted.
Broken speed limit pot.
1 4 Undervoltage
fault
Battery voltage too low. Battery voltage < 17 V.
Bad connection at battery or
controller.
1 5 Overvoltage fault Battery voltage is too high. Battery voltage > 31 V.
Vehicle operating with charger
attached.
Intermittent battery connection.
2 1 Main off fault Main contactor driver Off fault. Main contactor driver failed
open.
2 3 Main fault Main contactor fault. Main contactor welded or stuck
open.
Main contactor driver fault.
(1,4) (1,4) (1,4)
LED blinks
1 second stop