Darfon H5000 - Warning and Fault Code Definitions; Troubleshooting Error Codes

I N S T A L L A T I O N M A N U A L H 5 0 0 0 H Y B R I D I N V E R T E R
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Warning and Fault Definition
On the Power Flows Page, the icon will flash when an error has occurred. Listed below are the error codes and
their solutions.
CODE
FAULT EVENT
ALARM
SOLUTION
01
DC bus voltage exceeds the upper threshold
Non-action
1. Shut down the system completely.
2. Restart the system to see if it’s ok.
3. If error message still remains, please contact your installer.
02
Arc occurs on PV
Non-action
03
DC bus voltage falls below the lower threshold
No-action
04
An relay fault event is detected
No-action
05
Battery discharging current exceeds the upper
threshold
ON – 1sec
OFF – 1sec
07
Battery charging current exceeds the upper
threshold
ON – 1sec
OFF – 1sec
08
Short circuit on PV1 input
No-action
09
Short circuit on PV2 input
No-action
10
Short circuit on inverter output
Always ON
11
Leakage current CT fault
No-action
12
DC/DC OP Current Sensor fault
No-action
13
Inverter OP Current Sensor fault
No-action
14
PV OP Current Sensor fault
No-action
15
EEProm read failure
No-action
16
Over temperature fault
ON – 1sec
OFF – 1sec
1. The internal temperature is higher than specified temperature.
2. Leave system to be cooled to room temperature.
3. If the error message still remains, please contact your installer.
17
PV input voltage exceeds the upper threshold
No-action
1. Check if the open circuit voltage of PV modules is higher than 500VDC.
2. If PV open circuit voltage is less than 500VDC and the error message
remains, pelase contact your installer.
18
Auxiliary power* failed
*Auxiliary power means switch power supply.
1. Turn off the system.
2. Then, restart the system.
3. If the error message still remains, please contact your installer.
19
PV insulation resistance is too low
No-action
1. Check if the impedance between positive and negative poles to the
ground is greater than 1MΩ.
2. If the impedance is lower than 1MΩ, please contact your installer.
20
Charging voltage is too high
No-action
1. Check if the connection between battery and inverter is well.
2. Make sure battery condition is ok.
3. Then, restart the inverter.
4. If error message remains, please contact your installer.
21
Fan fault
No-action
1. Please check if fans are runing ok.
2. If fans are runing ok, please shut down inverter first and then, restart it.
3. If fans are stop runing or error message remains after restart the
inverter, please contact your installer.