Troubleshooting - Goodwe HT Series User Manual

User Manual V1.1-2022-07-20

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 tha 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 PV 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
SPI Comm
1
Fail
2 EEPROM Fail
3 Fac Fail
4 DC-SPD
Night DCSPS
5
Fault
Cause
1. The chip is not
powered on.
2. The chip
program version
is wrong.
The internal
memory Flash is
abnormal.
Utility grid
exception. The
actual grid
frequency change
rate does not meet
the requirement
of the local grid
standard.
The inverter is
struck by lightning.
1. Temporary
abnormality
is caused by
environmental
factors.
2. Internal
components of
the inverter are
damaged.
Ground I Failure
Solutions
Disconnect the AC output switch and DC input
switch, then connect them 5 minutes later.
Contact the dealer or the after-sales service if the
problem persists.
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 frequency is within the
permissible range.
• Contact the local power company if the grid
frequency exceeds the permissible range.
• Contact the dealer or the after-sales
service if the grid frequency is within the
permissible range.
1. Improve the lightning protection facilities
around the inverter.
2. Disconnect the AC output switch and DC input
switch, then connect them 5 minutes later.
Contact the dealer or the after-sales service if
the problem persists.
Disconnect the AC output switch and DC input
switch, then connect them 5 minutes later.
Contact the dealer or the after-sales service if the
problem persists.
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