If your Roborock dock won’t wash the mops, washes them poorly, won’t use hot water or won’t dry them, these are the checks from Roborock’s manuals for its self-washing docks. For the Qrevo Edge 2 Flow, they come from Roborock’s manuals for its other Qrevo models, so check the manual that came with your robot too.

What This Problem Means

The dock isn’t running its wash or drying cycle, or something in the dock (the tanks, the cleaning tray or its filter) isn’t fitted or filled properly.

Common Symptoms

• The robot comes back but the mops aren’t washed
• The mops still look dirty after washing
• The wash isn’t using hot water
• The mops are still damp after drying

Safe Checks You Can Try

1. Check it was a mopping job

Roborock’s manuals say the mop cloths won’t be washed if they weren’t used.

2. Start cleans from the dock

If the robot doesn’t start from the dock, or the dock isn’t shown on the app map, it won’t go back to the dock to wash its mops.

3. Check the water tanks

Check the clean water tank is in place and refill it, and check the dirty water tank is in place and empty it. Use cold tap water only in the clean water tank: Roborock says hot water can deform it.

4. Check the cleaning tray and filter

Check the cleaning tray and its filter are fitted correctly. To clean them, Roborock says to remove the cleaning tray, rinse the tray and the filter with water, then refit them. On the Saros 10, check the water filter in the cleaning sink is fitted properly.

5. Fit the mop cloths flat

If washing is weak, the mop cloths may not be attached properly: stick them flat on the mounts. If your floors are very dirty, change the mop washing mode to “Deep” in the app.

6. Turn on hot-water washing

If the dock won’t wash with hot water, check the hot-water setting in the app: on the Saros 20, Saros 20 Neo and Qrevo Edge 2, set Mop Washing Temperature to Hot Water; on the Saros 10, set Washing Water Temperature to Hot Water; on the Qrevo Curv, check Mop Washing with Hot Water is turned on. Don’t touch the clean water dispensers during a hot wash, as the water can burn. The manuals for the other self-washing models don’t list a hot-water setting.

If the mops aren’t drying

Roborock’s manuals say to check auto-drying is turned on in the app. If the robot leaves the dock during drying, drying ends early. In a humid room, set a longer drying time in the app.

Saros 10: Error 42

If the Saros 10 says “Error 42” and the maintenance brush stops at one side of the cleaning sink, its manual says: if it stops at the left side it may be jammed, so remove anything jamming it; if it stops at the right side, the water filter may be blocked or not fitted, so clean it and fit it in place.

When To Contact Support

If none of these checks fix it, contact Roborock through its UK contact page, with your robot’s model and the serial number from the sticker underneath it.