User's Manual

M3P U-series AC EV Charging Station User Manual
24
indicator
information
Fault category Handling Method
Flash slowly twice and
fast 1 times
Electric vehicle
response timeout
Fault code 21: Make sure that the charging
connector is properly connected to the car, pull out
and retry, or the car is full charge.
Flash slowly twice and
fast 2 times
No diode at EV end
Fault code 22: This EV does not meet the IEC
standards and cannot be charged
Flash slowly twice and
fast 3 times
Relay sticking
Fault code 23: The device is damaged and needs to
be returned to the factory for repair
Flash slowly twice and
fast 4 times
Leakage detection
circuit failure
Fault code 24: The device is damaged and needs to
be returned to the factory for repair
Flash slowly twice and
fast 5 times
Ground fault
Fault code 25: Charger is not grounded, input
power cable needs to be checked
7.2. Maintenance
To ensure the long-term stable operation of the equipment, please maintain the equipment regularly
(usually every month) according to the operating environment.
a) The equipment is maintained by professionals.
b) Check whether the equipment is well grounded and safe.
c) Check whether there are potential safety hazards around the charging pile, such as whether
there are high temperature, corrosion or inflammable and explosive articles close to the Charger.
d) Check whether the join point of the input terminal is in good contact and whether there is any
abnormality. Check whether other terminal points are loose.