I have a Growatt SPF 5000 ES that has been running for about five months without any problems. However, a few days ago, I received an error code 07 (overload indication) on my mobile app during a normal sunny day and when the house was empty (meaning an overload was not possible).
To make a long story short, I have identified the following problem:
- When the inverter is plugged into the grid AC input (230V 50Hz), the error code 07 (overload) pops up every 5-6 seconds with a 250%-300% overload indication on the screen, and then goes back to 5%-10% load. It's important to note that the overload is not realistic. No appliances are running during this testing period, and the real output is around 250W.
- When I unplug the inverter from the grid AC input (running on battery power or PV power), there is no error code 07 and everything runs smoothly.
Anyone experienced this or similar problem before? Any suggestions?
Thank you for reading and suggestions, and all the best in the New Year!
To make a long story short, I have identified the following problem:
- When the inverter is plugged into the grid AC input (230V 50Hz), the error code 07 (overload) pops up every 5-6 seconds with a 250%-300% overload indication on the screen, and then goes back to 5%-10% load. It's important to note that the overload is not realistic. No appliances are running during this testing period, and the real output is around 250W.
- When I unplug the inverter from the grid AC input (running on battery power or PV power), there is no error code 07 and everything runs smoothly.
Anyone experienced this or similar problem before? Any suggestions?
Thank you for reading and suggestions, and all the best in the New Year!