WALLY AC EV Charging Station User Manual
DOC ID: UM210801.A0 28
Fault light flash slowly
once and fast 8 times
Output shortage
Fault code 18: Check whether the charging adapter
and its cables are damaged or wet.
Fault light flash slowly
once and fast 9 times
Output over current
Fault code 19: Check whether the charging adapter is
correctly connected to the car, and check whether the
on-board charger is normal
Fault light flash slowly
twice and fast once
Electric vehicle
response timeout
Fault code 21: Make sure that the charging adapter is
properly connected to the car, pull out and retry, or
the car is full charge.
Fault light flash slowly
twice and fast twice
No diode at EV end
Fault code 22: This EV does not meet the IEC
standards and cannot be charged
Fault light flash slowly
twice and fast three
times
Relay sticking
Fault code 23: The device is damaged and needs to
be returned to the factory for repair
Fault light flash slowly
twice and fast four
times
Leakage detection
circuit fault
Fault code 24: The device is damaged and needs to
be returned to the factory for repair
Fault light flash slowly
twice and fast five
times
Earth fault
Fault code 25: Charging station 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 charging
station.
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.
