METRON Duo(+), User Manual, Page: 20 / 24

18 Troubleshooting
Status LED and troubleshooting
LED status Information/Cause Fix
LED is not on or blinking There is no power to the charging
station, the LED is faulty or charge
controller is faulty.
Check the activation of fuse/circuit
breaker or residual current circuit
breaker (RCCB); check charge
controller fuse/circuit breaker.
If not successful the charging
station needs a service.
Rapid blinking
(plugged or unplugged)
Station or vehicle fault. Try to charge another electric
vehicle; if other vehicle doesn’t
charge the charging station
needs a service.
Status LED
The status LED displays the operating status/faults of the charging station.
Faults:
Warning:
If you cannot fix the error or fault, ask a qualified electrician to check the charging station.
LED status Information
Slow blinking immediately after
turning-on the charging station
Blinks indicate last set charging current setting via front button.
Constantly on when plug is
unplugged
Stand-by/Ready to charge
Slow blinking when plugged in Charging in progress.
Constantly on when plugged in Electric vehicle is fully charged.
Slow blinking 2 times when plug is
plugged in
Electric vehicle requests interior ventilation (charging is halted).
Slow blinking 4 times
(plugged in or not plugged in) -
Only applicable for versions with
METRON Dynamic Power Control
system.
Charging not possible/interrupted to protect main grid fuse.
Other power devices switched on (water heaters, ovens, washing
machines...). Restarts charging automatically when those power
consumers are switched off.