ego lm2135sp mower starts but then shuts off immediately with an orange flashing light, what's that mean?

The overload protection has activated. The mower is trying to cut too much grass at once.

Fix it:

1. Release the blade control handle to stop the mower.
2. Press the battery release button and remove the battery pack.
3. Check for grass accumulation behind the cutting deck. Clear any blockage.
4. Reinstall the battery and restart.

If that didn't work:

• Grass is too wet or too long. Wait for the grass to dry or raise the cutting height.
• Cutting height is set too low for the conditions. Adjust the cutting height to a higher setting (3 through 8).

Prevention: Slow your pace. For thick grass, use a higher cut setting first, then lower it for a second pass.