GBESS 2.4_4.8KWH system user manual
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6 Troubleshooting
6.1 Safety during Troubleshooting
High electric voltage! Risk of death or personal injury by electric shock!
Never work with live wires! It is prior to all connection and maintenance work.
Make sure that the AC and DC wires are not charged.
The connection area should only be opened by a licensed electrician.
Warning! Danger from residual voltage out of capacitors.
You must wait until the capacitors have fully discharged. Discharge takes around15
minutes.
Caution! Danger from inadequate grounding.
An inadequate grounding conductor connection can cause serious injuries to
persons and damage to properties.
6.2 Faults
A fault can be divided into two catalogues: a permanent failure and a temporary failure. A ‘permanent
failure’ is defined by a fault having been present for more than 15 minutes and cannot be
acknowledged by inverter’s auto-restart. Unlike permanent failure, a “transient failure" is
automatically acknowledged by the inverter.
6.3 Fault Messages and Actions List
When failure occurs, warning codes will be displayed on the LCD screen. The latest 20 fault codes will
be stored in the EEPROM. Check the history fault information via long-pressing the key “ESC”. Detailed
fault definitions are listed as below:
Fault messages
Explanation
Action
E01
The DC injection of grid current is out
of range.
Contact the service if the error
occurs repeatedly.
E02
Different value between master and
slave CPU.
Wait until the controller has
re-stabilized.
E03
Different value between master and
slave for GFCI.
Wait until the controller has
re-stabilized.
E04
The current sensor is abnormal
Wait until the controller has
re-stabilized.
