What to do if 4 LEDs flash red on my Stihl HSA 56?
- DDavid PhelpsSep 1, 2025
If 4 LEDs flash red on your Stihl Trimmer, it means there is a fault in the battery. Remove and reinsert the battery, then switch on the trimmer. If the LEDs continue to flash red, stop using the battery and contact your STIHL dealer for assistance.