Type 2 AC EV charger Instructions-
V1.1.0
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12. Maintenance and Repair
Due to influences by changeable environment of the charger such as temperature, humidity, fog, etc and the
ageing of charger inner parts, various types of faults of charger might occur. Therefore, a regular examination
and maintenance of charger must be carried in product storage and using process.
Customer need to carry out the following inspection for every charger.
Regularly Inspection (Daily Inspection)
：
1
、
Whether there is any extra things, damages or cracks on the surface of the charger and charger inclined or
not.
2
、
Check whether the vehicle connectors are in right place and confirm no water or other liquid left inside the
plug before charging process.
3
、
Check whether the charger in normal power supply and all the lights are good.
4
、
Check whether the charger is in normal work.
5
、
Check whether the charging interface can be used normally, whether there is deformation and looseness.
Electrical and Controlling System Inspection (Monthly Routine Inspection)
1
、
Good connection between the charger and earth need to be ensured and clear marks need to be labeled for
earth terminals.
2
、
The insulation resistance of the independent electrical circuit of charger to the earth and among the circuits
shall not be lower than the specified value.
3
、
Check whether the terminals of the input cable are tightly connected.
4
、
Check whether the power distribution wire and internal control line of charger ageing or not.
5
、
Check whether the control board and internal components of charger ageing or not.
6
、
Check whether the input power voltage of charger and voltage to earth is in normal value range.
7
、
Check the leakage current of charger in normal value range.
8
、
Check whether the internal earth line and other terminals, connectors, charger inner power supply,
communication wiring terminals are detached or loose.
9
、
Check whether the main components like breaker, contactor have damages or abnormal conditions.
10
、
Whether the charger has peculiar smell, burning spoors or black dust.
