What does Growatt error 07 mean?
07 means you are drawing more power than the inverter is rated for. A short overload makes it beep; if it lasts, the inverter shuts down.
Why does code 07 appear?
- An AC, water pump, iron or microwave are running together.
- A pump or AC takes a big current surge when it starts.
- The inverter is too small for the house load.
What can you safely check for 07?
- Switch off heavy appliances and run them one at a time.
- Switch the inverter off, wait 5 minutes and switch it on again.
- Watch the load percentage on the screen and keep it below 100%.
Safety: never reach into an electrical panel, board, gas pipe or the inside of an inverter yourself. You can get a shock or release gas. This is a mistri's job.
When should you call a mistri?
If 07 shows even on a light load, have the inverter or wiring checked. If your load really is too big, ask a mistri about a larger inverter. An inverter carries DC current from the panels and battery that can kill, even after the mains is off. Never open the inverter cover or the DC wires yourself.