Blades stop at high temperature

16.1 Basic Information

Version	Model	Edited by	Reviewer	Last Updated	Status	Release Notes
V1.0	Lymow One and Lymow One Plus	Lymow Technical Support Team	Lymow R&D	2026-09-30	Published	Initial Update

If the problem is grass clogging or motor damage, the blades usually will not recover on their own.

The cutter head motor temperature is too high, triggering the high-temperature cutter stop protection.

V3.0.10 APP reports E90 indicating overheating of the cutter head (high-temperature cutter stop does not necessarily trigger E90 every time; in some scenarios, only the cutter stops rotating without a clear error code, so judgment needs to be made by combining the phenomenon and temperature)
Move the machine to a cool, shaded area and leave it undisturbed until it cools down completely.
- Restart the device after the temperature drops and check whether the blade resumes normal rotation.
- If it returns to normal after cooling, this likely indicates that a high-temperature protection event was triggered.
  
  Continue monitoring. If it recurs under normal load, treat it as a suspected motor cooling issue and escalate to Lymow Support.

Remove grass clippings and foreign objects, then check if it can resume normal operation
Please contact Lymow Support for further assistance
- Solution: Apply the Cooling fan kit
  Youtube tutorial video: https://www.youtube.com/watch? v= TAh80mnJYqU
Document: https://docs.google.com/document/d/1d6RIUhZIIeCU2JHQ5cdxJ8bWwVfbB3yQ/edit? usp= sharing&ouid= 103913466398469955609&rtpof= true&sd= true
- Software: Firmware V2.1.51 and APP V3.0.10 and above will optimize the high-temperature blade stop logic to avoid the phenomenon where the machine keeps moving forward but does not mow the grass.

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

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