Fall Robot Mower Checklist — End-of-Season Maintenance

MA MowAutonomous Editorial Team · Updated 2026-06-23 · 10 min read

Fall is the most demanding season for robot mowers. Falling leaves, wetter conditions, and shorter days all stress the mower. This checklist helps you keep your mower running well through fall and prepare it for winter storage.

1. Manage Leaf Drop

Falling leaves are the biggest fall challenge for robot mowers. Light leaf cover (under an inch) gets mulched into the lawn — beneficial. Heavy leaf cover (3+ inches) clogs the mower and can damage it. Rake heavy leaf accumulation before each mow, or mow daily during peak leaf drop to keep up.

2. Clean the Cutting Deck More Frequently

Wet leaves stick to the underside of the cutting deck and reduce cut quality. In fall, clean the deck after every mow session (vs. weekly in summer). Turn the mower over (after removing the battery) and scrape out the leaf buildup with a plastic scraper.

3. Replace Blades More Often

Leaves dull blades faster than grass. In fall, replace blades every 2-4 weeks (vs. every 1-3 months in summer). Keep 4-5 spare sets on hand — you don't want to run out in the middle of leaf season. Order spares in August so you have them ready.

4. Raise the Cutting Height

In fall, raise the cutting height by 0.5 inches. This gives the mower more clearance to handle leaves and reduces the risk of clogging. It also helps the grass store energy for winter dormancy. Lower the height back to normal in spring.

5. Adjust the Mowing Schedule

Grass grows slower in fall, but leaves keep falling. Consider mowing daily (or every other day) during peak leaf drop (October-November in most US climates) to keep up with leaf mulching. Reduce mowing frequency to weekly once leaves have finished falling.

6. Watch the Weather

Fall weather is unpredictable. Heavy rain makes grass (and leaves) too wet to mow effectively. Frost can damage the mower. Use the app's weather-aware scheduling (if available) or manually pause mowing during bad weather. Most mowers have a rain sensor — make sure it's enabled.

7. Check Battery Health

Cold temperatures reduce battery performance. If your mower's runtime per charge drops significantly in fall, that's normal — the battery is just less efficient in the cold. Don't replace the battery for fall-only issues; wait until spring to see if the issue persists.

8. The Final Mow of the Season

When daytime temperatures consistently drop below 50°F (10°C), grass stops growing and it's time for the final mow. For the final mow: (1) Lower the cutting height by 0.5 inches (this helps prevent snow mold in cold climates). (2) Mow the entire lawn one last time. (3) After the final mow, follow the winter storage procedure.