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38
Tab. 6-2: Fault code and solution
Fault description Recommended solution
E001
E003
Displayed code
39
●Heat radiation
6.2 Daily maintenance
●Cleaning
Troubleshooting and maintenance Troubleshooting and maintenance
1. Switch off the breaker.
2. Check if the resistance between the
+/ - poles of the PV1&PV2 assembly and
the ground is larger than 1MΩ.
3.If the fault above is remove but the
Inverter can still not work normally ,
please ask for professional service.
1. Switch off the DC breaker.
2. Check if DC2 voltage is higher than
1000V
3. If the fault above is removed but the
inverter can still not work normally,
please ask for professional service.
1. Switch off the DC brea
ker.
2. Check if DC1 voltage is higher than
1000V
3. If the fault above is removed but the
inverter can still not work normally,
please ask for professional service.
E002
It is unnecessary to maintain the inverter in normal conditions but it is necessary
to make sure the inverter is not covered by dust.
The inverter can be cleaned by electric compressed air blower, dry soft cloth or
soft brush. Please never clean the inverter by any water, corrosive chemical
agent or cleaning agent.
To protect the normal operation and prolong the service life of the inverter, the
inverter must be installed in a well ventilated space without any air barrier
surrounding the heat radiator at the back of the inverter, and dust or snow must
be removed timely if any.
The insulation
resistance is low
The DC1 voltage is
too high
The DC2 voltage is
too high
Fault description Recommended solution
E004
E005
Displayed code
1. Switch off the DC breaker.
2. Check if t he system is designed
incorrectly(DC1 power too high).
3. If the fault above is removed but the
inverter can still not work normally,
please ask for professional service.
1. Switch off the DC breaker.
2. Check if t he system is designed
incorrectly(DC2 power too high).
3. If the fault above is removed but the
inverter can still not work normally,
please ask for professional service.
The DC1 input
current is too high
The DC2 input
current is too high
P011
P012
P013
P014
P015
Displayed code
Protection description Recomm
ended solution
Phase loss
Over temperature
Bus unbalance
Utility not three phase
Relay open
Check whether all the three phase lines
are connected to the grid.
The inverter will recover automatically
when the temperature gets lower.
The inverter will recover automatically.
Check whether all the three phase lines
are connected to the grid.
The inverter will recover automatically.
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