My robot mower crosses the boundary wire and leaves the yard
Home Nura guide — category: Robot Lawn Mowers
Diagnosis
Warning: this symptom can point to a serious hardware defect. Stop using the device until the cause is found. We recommend contacting the manufacturer or an authorized repair centre before you try to use it again.
Recommended steps
Unplug it right away and stop using the device. Document the symptom (photos, video, sounds), then contact the manufacturer's support. If the device is still under warranty, keep your proof of purchase handy: this kind of failure is exactly what the warranty is for.
Repair or replace?
If the problem persists after these checks and the appliance is no longer under warranty, compare the repair estimate with the cost of a new model.
If you decide to replace it
Robot Lawn Mowers: the shortlist from our buying guide
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Best overall
ECOVACS GOAT A1600 RTK
RTK and LiDAR combined to stay accurate near trees, up to 1,600 m², a 33 cm cut and slopes up to 50% according to ECOVACS.
Photo: © ECOVACS
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Best value
Segway Navimow i105E
Wire-free RTK plus VisionFence camera for lawns up to 500 m², with a simple guided setup in the app.
Photo: © Segway-Ninebot
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Best for large slopes
Mammotion LUBA 2 AWD 3000X
All-wheel drive, slopes rated up to 80%, a 40 cm cut and RTK plus AI vision for lawns up to 3,000 m².
Photo: © Mammotion
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Other common problems in this category
These issues affect the same type of appliance — each one comes with a diagnosis and the recommended steps.
- Robot Lawn MowersThe blades of my robot mower keep jamming on tall grass
- Robot Lawn MowersThe charging base of my robot mower has stopped recharging
- Robot Lawn MowersMy robot mower cuts the grass unevenly, leaving taller strips
- Robot Lawn MowersThe blades on my robot mower wear out abnormally fast and tear the grass
Frequently asked questions
Usually, yes, if the failure shows up during the warranty period and isn't caused by misuse. A product in the Robot Lawn Mowers category bought new from an authorized retailer normally comes with a manufacturer's warranty: check its length in the manual or on the brand's website. Consumer protection rules also vary by province and territory, so keep your proof of purchase.
If you're still within the store's return window, a return or exchange is usually the fastest fix. After that, the manufacturer's warranty takes over: its customer support can arrange a repair or a replacement. Even outside the warranty, the manufacturer can often repair the device for a fee. Either way, keep your proof of purchase.
Our public methodology lowers the Nura Score /10 of any model in the Robot Lawn Mowers category whose recurring failures are documented in owner reviews. A model that breaks down too often never tops our rankings, whatever the brand.
Generally, yes. Routine maintenance, such as cleaning, replacing a gasket or recalibrating, is part of normal use and doesn't usually affect your warranty. Irreversible changes to the hardware are what can cause problems. For a product in the Robot Lawn Mowers category, stick to the steps described in the manufacturer's manual and read the warranty terms before going any further.
When a product fails in its first few months of normal use, the cause is usually a manufacturing defect. Contact the seller or the manufacturer with your proof of purchase and a description of the symptom: for a model in the Robot Lawn Mowers category that is still under warranty, this is the typical case for a free repair or replacement. Warranty terms vary by brand, so read yours.