Troubleshooting - Goodwe XS Series User Manual

Maintenance

9.4 Troubleshooting

Perform troubleshooting according to the following methods. Contact the after-sales service if
these methods do not work.
Collect the information below before contacting the after-sales service, so that the problems can
be solved quickly.
1. Inverter information like serial number, software version, installation date, fault time, fault
frequency, etc.
2. Installation environment, including weather conditions, whether the modules are sheltered
or shadowed, etc. It is recommended to provide some photos and videos to assist in
analyzing the problem.
3. Utility grid situation.
No. Fault
1 Utility Loss
Grid
2
Overvoltage
Cause
1. Utility grid power fails.
2. The AC cable is
disconnected, or the AC
breaker is off.
The grid voltage exceeds
the permissible range,
or the duration of high
voltage exceeds the
requirement of HVRT.
User Manual V1.1-2023-12-30
Solutions
1. The alarm is automatically cleared
after the grid power supply is
restored.
2. Check whether the AC cable is
connected and the AC breaker is on.
1. If the problem occurs occasionally,
the utility grid may be abnormal
temporarily. The inverter will recover
automatically after detecting that the
utility grid is normal.
2. If the problem occurs frequently,
check whether the grid voltage is
within the permissible range.
• Contact the local power company
if the grid voltage exceeds the
permissible range.
• Modify the overvoltage protection
threshold, HVRT or disable the
overvoltage protection function
after obtaining the consent of the
local power company if the grid
frequency is within the permissible
range.
3. Check whether the AC breaker and the
output cables are connected securely
and correctly if the problem persists.
42