McCulloch
Electrical Overheating / Motor or PCB Failure
Robot mower emits a burning smell or shows signs of overheating around the motor area.
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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
Seized cutting motor, Overloaded drive motor, Shorted wiring harness, Failing component on main PCB
How to Fix / Troubleshooting
Safety first: Immediately turn OFF the main switch, disconnect from the charging station, and move the mower to a non-flammable surface. Do not continue to operate until inspected.
- Visual inspection: After cooling, open the housing and look for burnt wires, melted insulation, or discolored PCB areas.
- Check motor rotation: Manually rotate the blade disc and wheels. Any stiffness or seizure indicates a failing motor that must be replaced.
- Inspect wiring: Look for pinched or rubbed-through cables, especially near moving parts.
- Do not bypass fuses: Replace any burnt components only with original parts. If the source of overheating is unclear, have the mower professionally inspected.
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Repair Difficulty
Professional Required
5/5
Required Part
Cutting Motor Assembly
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