Yard Force Intermittent Power Loss / Loose Connection

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

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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

Loose battery connector, Cracked solder joint on main PCB, Loose main switch terminals, Vibration causing intermittent contact

How to Fix / Troubleshooting

Safety first: Turn OFF the mower and disconnect the battery before inspecting connections.

Steps:

  • 1. Wiggle test: With the mower running (blades disabled), gently tap the housing near the battery and switch. If it cuts out, suspect a loose connection.
  • 2. Reseat connectors: Unplug and replug the battery connector and main switch connectors several times to clean contacts.
  • 3. Inspect PCB: Look for cracked solder joints on high‑current connectors. Re‑solder if you are qualified, or replace the PCB.
  • 4. Secure wiring: Use cable ties to prevent wires from moving excessively and stressing connectors.
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Repair Difficulty

Hard 4/5

Required Part

Battery Connector Harness or Main Control PCB
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