Growatt Fault 07 fault: Overload time-out
Safe to check yourself
Urgency: low
What it means
The load stayed above about 110% of the inverter's rating for too long. Switching some appliances off clears it.
Likely causes
- Too many appliances running together
What you can safely check
- Switch off or unplug heavy appliances (kettle, heater, geyser, pool pump) on the backup circuits.
- Restart the inverter once using its documented switch-off and switch-on procedure.
- If it keeps coming back, stop and call a qualified installer.
When to call a pro
If the safe checks don't clear it, or it keeps coming back, call a qualified installer.
Solar systems carry dangerous voltages. Only do the safe checks listed. If unsure, call a pro.
Source: Growatt Off Grid Solar Inverter SPF 3500 ES / SPF 5000 ES User Manual v4.0 (paraphrased)