Greenworks Intermittent Power Loss

Robot mower starts but stops after a few seconds without showing an error code.

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.

Possible Causes

Loose battery connector, Failing battery cells, Faulty main power switch contacts, Cracked solder joints on power input of main PCB

Safety first: Turn OFF the mower and remove the battery if possible.

Check battery fit: Ensure the battery is fully latched and cannot move when the mower is bumped.
Inspect connectors: Look for discoloration, melting, or looseness at the battery plug and main switch.
Test on charger: Place the mower on the station and see if it runs longer while docked (if model allows). Sudden shutdowns point to battery or power path issues.

If intermittent shutdowns continue, the battery or main PCB power section likely needs replacement.

Hard 4/5

Main Power Switch

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