[Fix my robot](https://robotsforthat.com/fix/) / [TerraMow V1000](https://robotsforthat.com/guides/terramow-error-codes/) / Vision sensor dirty ● Checked Nov 12, 2026 From TerraMow support TerraMow error E0809 # TerraMow V1000 "Vision sensor dirty" (E0809): what it means and the fix Steps **2** Tools **None** Parts None Works for TerraMow V Series (V1000 and V600). Short answer **What it means:** The vision sensor is dirty or blocked. **Quick fix:** Clean the vision sensor with a soft cloth. ## Fix it in 2 steps - Clean the vision sensor with a soft cloth. Done? - Resume the task. Did it work? **Fixed when:** The mower resumes the task. Great, it is fixed. Bookmark this page in case it comes back. **Still showing Vision sensor dirty?** The code comes back after a restart. Email TerraMow support at support@terramow.com with the error code, or send feedback from the TerraMow app. Contact TerraMow support. Warranty: 2 year limited warranty on the mower, base station, adapter and battery pack, per the V Series manual. [TerraMow support →](https://support.terramow.com/hc/en-001) ## Parts that fix this [Replacement blades For TerraMow V1000 on Amazon Check price →](https://www.amazon.com/s?k=TerraMow%20V1000%20replacement%20blades&tag=robotsforthatai-20) Check the part fits your model. Affiliate links: we may earn a commission at no cost to you. ## Other TerraMow V1000 errors [E0001 Blade disc blocked ›](https://robotsforthat.com/fix/terramow-error-e0001/)[E0002 Blade disc motor error ›](https://robotsforthat.com/fix/terramow-error-e0002/)[E0003 Blade jammed ›](https://robotsforthat.com/fix/terramow-error-e0003/)[E0004 Blade disc motor error ›](https://robotsforthat.com/fix/terramow-error-e0004/)[E0101 Cutting height module blocked ›](https://robotsforthat.com/fix/terramow-error-e0101/)[E0102 Cutting height module error ›](https://robotsforthat.com/fix/terramow-error-e0102/)[E0103 Cutting height module blocked ›](https://robotsforthat.com/fix/terramow-error-e0103/)[E0201 Robot lifted ›](https://robotsforthat.com/fix/terramow-error-e0201/)[E0202 Robot lifted ›](https://robotsforthat.com/fix/terramow-error-e0202/)[E0301 Safety key not detected ›](https://robotsforthat.com/fix/terramow-error-e0301/)[E0401 Robot tilted ›](https://robotsforthat.com/fix/terramow-error-e0401/)[E0402 Robot tilted ›](https://robotsforthat.com/fix/terramow-error-e0402/)[E0403 Motion sensor error ›](https://robotsforthat.com/fix/terramow-error-e0403/)[E0501 Drive wheel blocked ›](https://robotsforthat.com/fix/terramow-error-e0501/)[E0502 Drive wheel motor error ›](https://robotsforthat.com/fix/terramow-error-e0502/)[E0503 Drive wheel motor error ›](https://robotsforthat.com/fix/terramow-error-e0503/)[E0504 Drive wheel motor blocked ›](https://robotsforthat.com/fix/terramow-error-e0504/)[E0601 Charging voltage error ›](https://robotsforthat.com/fix/terramow-error-e0601/)[E0602 Battery fault ›](https://robotsforthat.com/fix/terramow-error-e0602/)[E0603 Battery temperature out of range ›](https://robotsforthat.com/fix/terramow-error-e0603/)[E0604 Battery fault ›](https://robotsforthat.com/fix/terramow-error-e0604/)[E0701 Weak charging connection ›](https://robotsforthat.com/fix/terramow-error-e0701/)[E0801 Vision sensor error ›](https://robotsforthat.com/fix/terramow-error-e0801/)[E0802 Vision sensor error ›](https://robotsforthat.com/fix/terramow-error-e0802/)[E0803 Vision sensor or base station marker dirty or blocked ›](https://robotsforthat.com/fix/terramow-error-e0803/)[E0807 Robot slips or gets stuck near the station ›](https://robotsforthat.com/fix/terramow-error-e0807/)[E0902 Dangerous drop detected ›](https://robotsforthat.com/fix/terramow-error-e0902/)[E0903 Robot stuck ›](https://robotsforthat.com/fix/terramow-error-e0903/)[E0904 Target area unreachable ›](https://robotsforthat.com/fix/terramow-error-e0904/)[E0905 Cannot return to the base station ›](https://robotsforthat.com/fix/terramow-error-e0905/)[E0906 Obstacles near the station prevent docking ›](https://robotsforthat.com/fix/terramow-error-e0906/)[E0908 Start the task from the base station ›](https://robotsforthat.com/fix/terramow-error-e0908/)[E0909 Path planning failed ›](https://robotsforthat.com/fix/terramow-error-e0909/)[E0910 No power at the base station ›](https://robotsforthat.com/fix/terramow-error-e0910/)[E0911 Cannot leave the base station ›](https://robotsforthat.com/fix/terramow-error-e0911/)[E0912 Map does not match the surroundings ›](https://robotsforthat.com/fix/terramow-error-e0912/)[E0913 Sparse grass blocks leaving the station ›](https://robotsforthat.com/fix/terramow-error-e0913/)[E0914 Robot outside the work area ›](https://robotsforthat.com/fix/terramow-error-e0914/)[E1400 Collision sensor blocked ›](https://robotsforthat.com/fix/terramow-error-e1400/)[E1404 Factory mode ›](https://robotsforthat.com/fix/terramow-error-e1404/)[E1406 Temperature too high ›](https://robotsforthat.com/fix/terramow-error-e1406/)[E1408 Base station in the wrong place ›](https://robotsforthat.com/fix/terramow-error-e1408/)[E1409 Anti-theft alarm ›](https://robotsforthat.com/fix/terramow-error-e1409/)[E1410 GPS module error ›](https://robotsforthat.com/fix/terramow-error-e1410/)[All 48 TerraMow V1000 codes →](https://robotsforthat.com/guides/terramow-error-codes/) ## Keeps happening? 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Free · no password [Add my robot](https://robotsforthat.com/my/?add=1) ## Sources - [TerraMow: V Series (V1000 and V600) user manual, version 20250509, error code tables](https://www.mediaexpert.pl/products/files/79/7993969/Instrukcja-obslugi-TERRAMOW-V600.pdf) Black Friday is Nov 27 Get the Black Friday prices on robot vacuums, mowers, pool robots, 3D printers and kits the day they drop We check prices every morning and compare them with each model's 2026 low. One email when real deals land, plus our 5 minute Friday roundup. Unsubscribe anytime. HTML version: https://robotsforthat.com/fix/terramow-error-e0809/