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9 Fault removal
Our products are carried out with strict tests before they take out, if the operation
difficulties in the process of installation, please log on to www.ginverter.com website,
view the Q&A program.
When SPH inverter fault happens, please inform our company, and to provide SPH
related information, we will have a professional after-sales service personnel to answer
you.
What you need to provide the information about the SPH including:
Serial number
Model
Information about the LCD display
Brief description of problems
The battery voltage
The PV input voltage and power per string.
The grid voltage and frequency
Can you retell the failure problem? If you can, what kind of a situation
Did the problem happen in the past?
When did this fault happen? First installation?
About the battery
The manufacturer name and model of battery
Capacity of battery
Output voltage of the battery
The time you buy Battery and frequency you use it
9.1 System fault information list and troubleshooting suggestions
Raillog/Meter
Communication fault
Check the wire connection between meter and
inverter is good or not.
Check the distance of Raillog and inverter is in
the range of specification or not.
Restart inverter and Raillog, reconnect.
Check the positive and negative of PV
input is reversed or not.
Reinserted the PV terminal, please
contact Growatt service center if restart
can't solve the problem.
Battery temperature out of
specified range for charge
or discharge
Check the environment temperature of
battery is in the range of specification or
not.
Grid voltage fault.
Please refer to the local grid
standard for more details of the
grid frequency.
Check the AC voltage is in the range of
standard voltage in specification.
Check the grid connection is good or not.
Grid frequency fault.
Please refer to the local
grid standard for more
details for the grid voltage.
Check the frequency is in the range of
specification or not.
Restart inverter.
Please contact Growatt service center if
restart can't solve the problem.
Check the lithium Battery is open or not.
Check the connection of lithium Battery
and inverter is good or not.
Battery terminals reversed
Check the positive and negative of battery
is reversed or not.
NTC open
(only for lead-acid battery)
Check the temperature of lead-acid battery
is installed or not.
Check the temperature of lead-acid battery
is connected well or not.
Battery terminal open
(only for lithium battery)
Check the battery connection is good or
not.
Check the switches between the battery
and inverter are all on or not.
EPS output overload
warning.
If this warning occurred
three time. Off-grid function
will be locked one hour and
output power again.
Please reduce the load of EPS output.
Please confirm grid is lost or not.
Check the grid connection is good or not.
Check the switches on the cable are on or
not.
Output DC current too high.
Please refer to the local grid
standard for disconnection
time when the output DC
current is too high.
Restart inverter.
Please contact Growatt service center if
restart can't solve the problem.
Battery Voltage higher than
60V
Check the voltage of battery is in the range
of specification or not.
Check the battery connection is right or not
If battery is really higher than 60V. Please
disconnect the connection of battery and
check inverter.
Battery Voltage Lower than
42 V
Check the real voltage of battery.
Check the wire of battery and inverter is
good or not.
Check the warning information from lithium
battery user manual.
Please contact Growatt service center if
restart can't solve the problem.
Check the warning information from lithium
battery user manual.
Please contact Growatt service center if
restart can't solve the problem.
Check the load of EPS. If overload
occurred, reduce load.
Restart inverter again.
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