Stihl · Power Tools
This error message indicates a problem with the tool's electronic module. This could be a hardware defect, an internal electronic fault, or an issue with temperature measurement or calibration.
Click steps to track your progress.
Replace the electronic module as indicated in the manual.
Ensure the tool is operating within its specified environmental conditions.
Verify that the battery used is compatible and correctly charged.
If replacing the module does not resolve the issue, further diagnostics may be needed.