Growatt inverter error code F40
WattMate is not affiliated with Growatt. This page summarises Growatt's own published documentation; your installer and Growatt are the authority on your system. WattMate doesn't repair systems or make site visits.
What it means
- Meaning
- PV Voltage Over
- Likely cause
- Check whether the actual PV voltage is consistent with the Main Screen.
- What the manual says to do
- 1. Check whether the actual PV voltage is consistent with the Main Screen. 2. Check whether the PV string voltage (Voc) is higher than the maximum input voltage of the inverter. If yes, adjust the number of PV modules in series to reduce the PV series voltage. 3. If the fault persists, contact the manufacturer.
- Manufacturer's severity
- Critical
Growatt's documentation says this one needs your installer.
Extracted from Growatt's published manual. Check it against the manual for your model. Open the source document
When to call your installer or the warranty line
Your installer is your first warranty contact. If they've gone, the manufacturer's warranty line still covers the hardware. Don't open the inverter or battery case yourself: work inside it is for a licensed electrician.
If you see smoke, scorch marks or smell burning, switch the system off at the AC and PV isolators and call your installer. If anyone is in danger, call 000.
- Growatt warranty phone
- 1800476928
- Growatt warranty email
- australia@growatt.com
- Growatt service network
- Open the manufacturer's service page