Page 1
5KW Storage Inverter Repairing Guide SUN-5K-SG Repair Guide When you see this sub-guide, it indicates that there is a problem with the machine and needs to open the machine housing for service. Before opening the Inverter Shell, the inverter's power cables (including AC and DC) need to be disconnected altogether.
Page 2
5KW Storage Inverter Repairing Guide Error F-01 DC input polarity Reverse Fault Description Turn off AC switch and DC switch, and check the PV panel DC input polarity. Positive Negative Error F-02 DC insulation impedance permanent fault Description The impedance between DC+ and ground or DC – and ground is too low, turn off the AC switch and DC switch, and then check whether the PV panel (aluminum frame) is grounded well and inverter is grounded well.
Page 3
The inverter detect the DC leakage current is too high. Firstly, restart the inverter 2 or 3 times. Sometime battery fuse is damage so test the Fuse continuity by multimeter. If this issue still exists, please contact your installer or Deye service center. Sometime DC-DC MOSFT damage or may DC-DC power supply have some issue...
Page 4
Error F-11 Ac main contactor errors Description Restart the inverter, if the error still exists, please contact Deye service. Error F-12 AC auxiliary contactor errors Description Restart inverter, if the error still exists, please contact Deye service.
Page 5
Max- AC output power. If the load power is within the range, may be something wrong with control card Firmware. Restart and check weather its normal or abnormal. Please contact Deye service. check AC sensor or detection circuit on control board or connection wire, sometime grid...
Page 6
5KW Storage Inverter Repairing Guide Error F-22 Tz_EmergSStop_Fault Description Earthing short (check GND (grounding) connection) This failure hardly happens Error F-23 AC leakage current is transient over current Description check leakage sensor or circuit on top board Error F-24 DC insulation impedance failure Description PV isolation resistance is too low 1.
Page 7
5KW Storage Inverter Repairing Guide Description No related to this machine Error F-32 Inverter 2 dc high fault Description No related to this machine Error F-33 AC over current Description No related to this machine Error F-34 AC current over load Description No related to this machine Error...
Page 8
5KW Storage Inverter Repairing Guide Error F-41 Parallel_system_Stop Description In parallel system, due to other inverter faults. 1. Wait for minutes then check all inverters in this parallel system; 2. If inverter can’t go back to normal state, record fault codes of all inverters, then seek help from us.
Page 9
5KW Storage Inverter Repairing Guide Grid frequency out of range 1. Check the frequency is in the range of specification or not; 2. Check whether AC cables are firmly and correctly connected; 3. Seek help from us, if can not go back to normal state. Error F-49/ 46 Bcakup_Battery_Fault...
Page 10
5KW Storage Inverter Repairing Guide Error F-57 AC reverse irrigation Description No related to this machine Error F-58 Battery over current Description Check the battery discharge current weather is within the allowed range If the fault still exist seek help from us Error F-59 AC grid V over current...
Page 11
5KW Storage Inverter Repairing Guide IGBT Repairing Guide After removing the housing, carefully remove the shell, the housing liquid crystal plate is connected to the inside of the machine. Take a photo of the interior and record the location of each harness to prevent errors during installation and send us photos. Diode and IGBT Testing IGBT measurements is of paramount importance, and the motherboard needs to be removed no more than is required next.
Page 12
5KW Storage Inverter Repairing Guide The above two figures are the measurement of the IGBT, set knob of multimeter to diode gear, red table pen corresponding to S-level, black pen corresponding to D-level, the value of 0.405V, black table pen point G-level value of about 0.450V. If the difference is too large, especially if the value is close to 0, the IGBT is damaged.
Page 14
5KW Storage Inverter Repairing Guide If the IGBT damaged replace the marked Component Corresponding to that IGBT After the replacement is complete, check the internal inductor or all other harnesses for breakage, whether there is direct contact with the shell. For example, in several locations below, whether the inductor line is broken.
Page 15
5KW Storage Inverter Repairing Guide the pad well and then lock all locks and studs. Install the control panel and plug in the harness. 1. Insert the L1/L2 inductive wire reed terminal into the corresponding position of the motherboard, pay attention to the contents of the line label and the motherboard silk screen 2.
Page 16
5KW Storage Inverter Repairing Guide 3. Take 60P gray line, no insertion of the corresponding position of the motherboard, as shown in the figure. 4. Use a tie to put the left inductive line as illustrated, pay attention to the inductive line can not be higher than the plastic stud 6.
Page 17
7. Take the plexiglass cover x1, flange nut s3, attach its fastening lock to the connection plate Install the top cover of the machine and test the machine. After installation if still have problem seek help to the Deye Service.
Need help?
Do you have a question about the SUN-5K-SG and is the answer not in the manual?
Questions and answers