Deye SUN-5K-SG Assembly instructions

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.

Wait at least 5 minutes before you can proceed.

1. Remove the screws counterclockwise

2. 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.

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.

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. Open the cover of inverter and then check

the inside ground cable is fixed well on the shell.

Error

F-03

DC leakage current fault

Description

Positive

Negative

5KW Storage Inverter Repairing Guide

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

Error

F-04

Ground fault GFDI

Description

It indicates the solar panel positive pole or negative pole connect to ground. Turn off

the AC switch and DC switch, and then check whether solar panel output terminals

connection is correct.

Error

F-05

Read the memory error

Description

It indicates the failure in reading memory (EEPROM). Restart the inverter, check

whether the error still exists. If still exists, please contact your installer to replace control

board or Deye service center.

Error

F-06

Write the memory error

Description

It indicates the failure in writing memory (EEPROM). Restart the inverter, check

whether the error still exists. If still exists, please contact your installer to replace control

board or Deye service center.

Error

F-07

DC/DC softstart fault

Description

It caused by low bus voltage (below 50V)

1. Check the battery fuse; refer to error code F03

2. Restart and check whether it is in normal;

3. Seek help from us, if can’t go back to normal state

Error

F-08

GFDI grounding touch failure

Description

No related to this machine

Fuse

5KW Storage Inverter Repairing Guide

Error

F-09

IGBT damaged by excessive drop voltage

Description

No related to this machine

Error

F-10

Aux Power Board Failure

Description

check MCU power supply 12V, if not ok then need to test 12-volt power supply circuit

on top board,

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.

Error

F-13

Reserved

Description

It indicates inverter working mode change. Loss of one phase or AC voltage detection

part damage or relays not closed.

1. wait for a minute and check

2. Seek help from us, if can't go back to normal state

5KW Storage Inverter Repairing Guide

Error

F-14

DC firmware over current

Description

No related to this machine

Error

F-15

AC firmware over current

Description

No related to this machine

Error

F-16

GFCI(RCD) AC leakage current fault

Description

No related to this machine

Error

F-17

Three phase current, over-current fault

Description

No related to this machine

Error

F-18

Read the memory error

Description

It indicates the AC current exceeds the Max-current. Firstly, check the connected load

power, make sure its power not exceed the inverter 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

relay fault due to over current and sometime load relay contactor stuck by spark (high

current) due to capacitive load (can be fix by connecting anti islanding contactor)

Error

F-19

Read the memory error

Description

No related to this machine

Error

F-20

DC over current fault out of the hardware

Description

check the PV input Polarity ,Check firstly PV module connection and battery

connection, if these connection ok then check PV current sensor or LC current sensor

or its control board detection circuit,

Turn off the DC switch and AC switch and then wait one minute, then turn on the

DC/AC switch again

Also may it can be happen by overload

Error

F-21

DC leakage flow fault

Description

No related to this machine

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. Check the connection of PV panels and inverter is firmly and correctly;

2. Check whether the PE cable of inverter is connected to ground;

3. Seek help from us, if cannot go back to normal state.

Error

F-25

DC feedback fault

Description

No related to this machine

Error

F-26

The DC busbar is unbalanced

Description

No related to this machine

Error

F-27

DC end insulation error

Description

No related to this machine

Error

F-28

Inverter 1 DC high fault

Description

No related to this machine

Error

F-29

Parallel_CANBus_Fault

Description

This fault only for inverters working in parallel mode

1. Check the parallel setting according to the instructions;

2. Check the connection of the CANBus;

parallel Mode Loss of communication CAN bus

3. Seek help from us if can not go back to normal state

Error

F-30

AC main contactor failure

Description

No related to this machine

Error

F-31

Dc boost soft start

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

F-35

No AC grid

Description

No Utility

1. Please confirm grid is lost or not;

2. Check the grid connection is good or not;

3. Check the switch between inverter and grid is on or not;

4. Seek help from us, if can not go back to normal state.

on no battery work mode not have grid then need to check grid detection circuit

Error

F-36

AC grid phase error

Description

No related to this machine

Error

F-37

AC three-phase voltage unbalance failure

Description

No related to this machine

Error

F-38

AC three-phase current unbalance failure

Description

No related to this machine

Error

F-39

AC over current (one cycle)

Description

No related to this machine

Error

F-40

DC over current

Description

No related to this machine

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.

Error

F-42

AC line low voltage

Description

Grid voltage fault

1. Check the AC voltage is in the range of standard voltage in

specification;

2. Check whether grid AC cables are firmly and correctly

connected;

3. Seek help from us, if can not go back to normal state.

Error

F-43

AC Line V,W over voltage

Description

No related to this machine

Error

F-44

AC Line V,W low voltage

Description

No related to this machine

Error

F-45

AC Line U,V over voltage

Description

No related to this machine

Error

F-46/ 49

Bcakup_Battery_Fault

Description

Backup battery fault.

1. Check the battery capacity;

2. Check the connection between batteries and inverters;

3. If inverter can’t go back to normal after load reduction, seek help from us

Error

F-47

AC over frequency

Description

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-48

AC lower frequency

Description

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

Description

Backup battery fault.

1. Check the battery capacity;

2. Check the connection between batteries and inverters;

3. If inverter can’t go back to normal after load reduction, seek help from us

Error

F-50

V phase grid current DC component over current

Description

No related to this machine

Error

F-51

W phase grid current DC component over current

Description

No related to this machine

Error

F-52

AC inductor B, phase current DC current high

Description

No related to this machine

Error

F-53

Read the memory error

Description

No related to this machine

Error

F-54

AC inductor C, phase current DC current high

Description

No related to this machine

Error

F-55

DC busbar voltage is too high

Description

1. Check whether PV voltage is too high or battery voltage is too high.

2. If the PV voltage is too high, reducing the number of PV panel in series

3. Seek help from us, if cannot go back to normal state

Error

F-56

DC busbar voltage is too low

Description

Battery voltage low

1. Check whether battery voltage is too low;

2. If the battery voltage is too low, using PV or grid to charge the battery;

3. Seek help from us, if can not go back to normal state.

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

Description

No related to this machine

Error

F-60

AC grid W over current

Description

No related to this machine

Error

F-61

Reactor A phase over current

Description

No related to this machine

Error

F-62

Reactor B phase over current

Description

No related to this machine

Error

F-63

ARC fault

Description

1.ARC fault detection is only for US market;

2. Check PV module cable connection and clear the fault;

3. Seek help from us, if can not go back to normal state.

Error

F-64

Heat sink high temperature failure

Description

Heat sink temperature is too high

1. Check whether the work environment temperature is too high;

2. Turn off the inverter for 10mins and restart;

3. Seek help from us, if can not go back to normal state

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