Troubleshooting
Robot Vacuum Leaving Streaks When Mopping
Streaks usually come from a dirty pad, too much cleaning solution or a dirty water tray, not a faulty robot. Try these fixes in order.
Quick fix
Replace or wash the pads, empty and rinse the dirty-water tank, and use less or no cleaning solution. Then run a small test area.
Dirty or worn pads
A soiled pad drags grime across the floor. Wash or replace it; see mop pad care.
Too much detergent
Excess solution leaves film. Follow the manual's dose, or try plain water if it is permitted.
Dirty water tray or tank
A dirty tray or tank reapplies old water. Empty and rinse both, and wipe the dock's wash tray.
Water flow and floor type
Some floors show streaks more (glossy tile, dark wood). Lowering water level or changing mode can help; follow your manual for floor-specific advice.
Hard water
Mineral residue can leave marks. Some makers suggest filtered or distilled water; check your manual.
A short diagnostic order
- Swap in a clean pad and empty both tanks before changing anything else.
- Run a small test area on the same floor to see whether streaks return.
- Reduce or remove cleaning solution and test again.
- Change one setting at a time, so you know which change helped.
When to contact support
If streaks persist with clean pads and tanks, ask the manufacturer about pump or pad-pressure faults. Note the model, the mop mode and the floor type when you contact them, since makers often ask for these. Related upkeep is covered in the maintenance schedule.
Frequently asked questions
Are streaks a sign the mop is broken?
Rarely. Pads, solution and tanks are the usual causes.
Can I mop with just water?
Many models allow it; check the manual.
How often should I wash the dock tray?
After each mopping session, or as the manual states.