Mammotion
Overheating Component / Electrical Insulation Breakdown
Robot mower emits a burning smell during operation
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Blade motor overloaded by tall grass, Drive motor overheating due to jammed wheel, Loose high-current connector arcing, Failing mainboard power components
How to Fix / Troubleshooting
Safety: Immediately turn OFF the mower and disconnect the battery. Do not continue operation until the cause is found.
- Visual inspection: Open the mower and look for discolored, melted, or charred connectors and components.
- Check for jams: Ensure the blade disc and wheels rotate freely with no obstructions.
- Smell localization: Carefully smell near the blade motor, drive motors, and mainboard to identify the source area (without touching hot parts).
- Reduce load: When restarting after repairs, mow at a higher cutting height and in shorter sessions.
- If any component shows signs of burning, replace the affected motor, harness, or mainboard before further use.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Wiring Harness
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