Error description 237-13839

Error message

13839 UM (FS.B): unreleased testing software loaded: CC%2 %1

Cause of error

An unreleased test software is installed on the inverter:
- This software has neither been tested nor officially released
- No checksum will be calculated for this software
This software is intended solely for testing purposes!

Error correction

This software or firmware must be replaced by a software or firmware that has been officially released:
- Create service files
- Inform your service agency