Ultra X50 reporting mop pad has fallen off, when it has not

Coby R

June 24, 2025 18:27

My dreame robot recently stopped working and reports that the mop pad has fallen off.  Both pads are clearly attached and have not gone anywhere.  I have cleaned the machine and all sensors appear fine.

 

I have ordered new mop pads, but they have not arrived.

 

Any idea how to address this?

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  Bebe

  October 13, 2025 15:11

  I have the same issue and can't find a solution for the L40 ultra

   

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  Elron H

  December 29, 2025 14:31

  Same issue, ticket in. Lets see how this goes. 

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  David Yaffe

  April 08, 2026 19:06

  I have the same issue with my X50. It says “Mop Pad Not Installed” when it is. if I take the device out of the dock, remove and re-install the mop pads and set it down on the floor, it works fine from then on. For some reason, it's not registering that the mop pad is installed. 

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  Bryan Falk

  August 05, 2026 23:29

  same problem here,  has anyone found a solution yet?     
  mine does this most often right after washing

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  Ilona DE MEYERE

  October 20, 2026 15:19 Edited

  Exactly the same problem here.
  Not sure why this suddenly started happening.
  Very happy DreamE user up to this point, but now I have to babysit the robot every time it goes to wash the mop.
  There is a 1 in 3 chance it will think its mop pads are not installed. They are, seriously.
  When you just pull the robot out of the X40 Master dock just 2 cm and then press the powerbutton once, the robot eventually says resuming cleaning since it realised the mop pads are installed. 
  It is very puzzeling and really does not feel like a hardware failure but rather glitching software.

  Current firmware installed 4.3.9_3584
  
  Oh en btw ordered new mop pads, that didn't fix it.
  
  Please respond if you are the genious who f*cked the bug!

   

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  Bryan Falk

  October 20, 2026 15:54

  FWIW i had to create a ticket - they had me ship the unit in and they replaced the drivecase assembly.   That SEEMS completely unrelated to me, but its what they concluded and sure enough, the machine runs reliably again.  I figure there is some sensing or actuation that takes place in that gearcase and replacing it fixes the (probably known) problem.
  Here are the exact notes from the repair tech:
   

  
  Fault Classifition：Product quality-Mopping Pad
  Oscillation Error-Mop motor malfunction
  Fault Description：L50 Ultra suffers from false mop pad
  detachment alert with sensor and firmware anomalies;
  full factory reset results in complete machine function
  lock-up.
  Repair Measures：Mop pad gearcase assembly
  REPLACED

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