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

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. The universal meter needs to be selected into
the diode gear when measuring the voltage drop of semiconductor devices such as
IGBT and diode.

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.
The above image is the data for measuring THE BOOST diode, the red pen to anode A,
the black pen to the cathode K, the measured data as shown 0.33V. If the data difference
is too large or close to 0 indicates that the diode is damaged.

5KW Storage Inverter Repairing Guide
0.450
0.405
0.450
0.405
0.450
0.405
0.450
0.405
0.450
0.405
0.450
0.405
0.450
0.405
0.450
0.405
s
G
D
s
G
D
s
G
D
s
G
D
s
G
D
s
G
D
G
s
D
G
S
D
K
A
K
A
0.585
0.435
0.585
0.435
0.585
0.435
0.585
0.435
0.585
0.435
0.585
0.435
0.585
0.435
0.585
0.435
0.585
0.435
0.585
0.435
0.585
0.435
0.585
0.435
G
s
D
G
s
D
G
s
D
G
s
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
S
G
D
If the IGBT is damaged, the corresponding drive also needs to be measured or replaced
directlyas shown in diagram below.
Example of the following diagram, the following device is: R? 10R0 resistance; Q; U?
To drive optocoupled, pay attention to the direction. The points on the device are in the
same direction as the white dots on the board. And there is one end of the three feet
close to the IGBT. Ensure that all damaged IGBTS are replaced.
AC Bridge
DC-DC

5KW Storage Inverter Repairing Guide
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. This is important and is an
important factor in whether the machine can be repaired, so be sure to check carefully.
And make to measure the resistance between the inductor harness to the housing, which
should be infinity.
Install the motherboard, first fix the peripheral screws, from the following image
marked place to observe the IGBT under the insulation sheet is well-placed, confirm
If the IGBT damaged replace the marked Component
Corresponding to that IGBT
Wider side facing transformer plate

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. Take the cross-head screw s4 L3/L4 inductive wire fastening lock attached to the
corresponding position of the motherboard, pay attention to the contents of the line
label and the motherboard silk screen consistent

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. Take the control board x1, plastic screws, the control plate fastening lock attached to
the motherboard plastic stud, pay attention to the direction of the control board
7. Insert the other end of the 60P gray line into the corresponding position of the control
board
1.Put back the capacitor plate
2. Take the cable total 6pcs, cross disk screw 6pcs, it is locked attached to the relay
board connection terminal, pay attention to the contents of the line label and PCB silk
screen consistent
3.Take the cross-disk head screw 1pcs, the upper right corner of the motherboard screws.

5KW Storage Inverter Repairing Guide
1. Pass the button switch cable through under the control panel and plug in the red
socket
2. Cover the housing above the radiator
3. Insert the other end of the motherboard 4P line into the connection plate P1 position
4. put back the cross head screw s6 the AC wire on the relay board, the lock of 6 is
attached to the connection plate, pay attention to the wire label and PCB silk screen
consistent, pay attention to the wire well buried under the shell
5. Take the cross head screw x1 to lock the yellow green line on the radiator to the
corresponding position on the shell, as shown in the figure
6. Place, button switch cable, empty PV line to be organized and tied near the side wall
of the shell with a tie, as shown in the figure
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.