Customer Solution Portal

Submit a ticket My Tickets
Login  Sign up

Error No. 0203

SMA Manual Recommendation

Error No.Explanation
Corrective measures
Line voltage is too low. Under voltage detected by redundant monitoring.

• Check the line voltage.

• Check the grid


• Check if the power

distribution grid is


• Make sure that the

external fuses function


• Make sure that the AC

cable connections are

securely connected.

Work in Progress:

Thanks for using the Solar Support Portal. I'm sorry, but this article is still a work in progress. We are here to help, so please send us your notes by clicking "no" below and sharing your thoughts. We will use your feedback to improve our articles! Thanks so much for supporting us in supporting you!

Did you find it helpful? Yes No

Send feedback
Sorry we couldn't be helpful. Help us improve this article with your feedback.