PV SW Set Error on Growatt 40K TL3-NS
LCD Display
![](https://www.amosplanet.org/wp-content/uploads/2022/04/WhatsApp-Image-2022-04-29-at-4.19.13-PM-576x1024.jpeg)
Reason:
![](https://www.amosplanet.org/wp-content/uploads/2022/04/image-1.png)
Default, Dipswitch should be OFF OFF. It means 2 MPPT function will work .If you set others, it will have the fault.
![](https://www.amosplanet.org/wp-content/uploads/2022/04/image-2-576x1024.png)
4 PV mode:
![](https://www.amosplanet.org/wp-content/uploads/2022/04/企业微信截图_20220429172926.png)
![](https://www.amosplanet.org/wp-content/uploads/2022/04/企业微信截图_16512245893875-1.png)
![](https://www.amosplanet.org/wp-content/uploads/2022/04/企业微信截图_20220429173017.png)
Only MPPT 2 can work
![](https://www.amosplanet.org/wp-content/uploads/2022/04/企业微信截图_16512246357793.png)
PV SW Set Error on Growatt 40K TL3-NS
LCD Display
Reason:
Default, Dipswitch should be OFF OFF. It means 2 MPPT function will work .If you set others, it will have the fault.
4 PV mode:
Only MPPT 2 can work