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Plus fails to power on

1.1 Basic Information

Version

Model

Edited by

Reviewer

Last
Updated

Status

Release
Notes

V1.0

Lymow
One Plus

Lymow Technical
Support Team

Lymow
R&D

2026-09-30

Published

Initial
Update

1.2 Phenomenon

  1. Upon power-on, there is no fan noise, the LCD screen remains off, and the breathing indicator light does not turn on
  2. The fan runs on startup but the LCD screen and breathing indicator light remain off
  3. The LCD screen and breathing light turn off after being on for a few seconds

1.3 Possible Reasons

  1. Internal resistance issue of the machine body
  2. The battery level is 0% or the battery is damaged
  3. The power button is pressed for too long or too short a time

1.4 Troubleshooting Steps

If you have a multimeter and are comfortable performing basic electrical checks, you may use the following procedure. If you are not sure, please contact Lymow Support before proceeding.

  1. Check the internal resistance of the machine

    • Power off the mower and move it outside the charging station. Set the multimeter to the resistance range, use the test leads to touch the two metal pins inside the power socket as indicated by the arrow (as shown in the figure), and read the value on the screen.

    • Normal Range Judgment: 1kΩ - 8.9kΩ(The reading on the legend is 8.68 kΩ, which falls within the normal range)
    • Hardware short circuit: less than 1K, do not power on.

  2. Check the battery output voltage to see if it can output normally

    • First, short-circuit the pins shown in the figure
    • Set the multimeter to the DC voltage range, and test the voltage across the positions shown in the diagram:
      • 0V: Recharge before retesting
      • Other values: Contact support email
  3. If the battery voltage output and the internal resistance of the device body are within the normal range, the mainboard may be damaged, and it is necessary to switch to measuring the resistance of the complete device. Test the resistance between the PIN pins of the battery connection cable in the picture and the metal casing of the complete device, set the gear to the ohm range, and adjust the gear to 2000k. The normal resistance value is about 500K.

 

1.5 Solutions

If the issue persists after following the steps above, please contact Lymow Support Center at support@lymow.com with the following information:

  • Order ID/Purchase Invoice
  • Troubleshooting results (with photos)
  • Device serial number (SN)
  • Time the issue occurred

We will follow up as soon as possible and provide a solution.

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