Exact model-family answer directory
iRobot Roomba Combo j7+ troubleshooting
iRobot Roomba Combo j7+ (Combo j7+): bin, tank and runtime (from iRobot and reviews); retractable mop; smartScrub; self-empty, and a fix for each symptom below.
- Bin, tank and runtime (from iRobot and reviews)A 0.3 L dust bin, a 210 mL water tank and up to 75 minutes on a 4460 mAh battery.
Confirm the model first
Which units this covers, and how to tell yours is one of them
- Model numbers and patterns
- Combo j7+
Published specification
What is true of this model and changes how you fix it
- Type — ROBOT vacuum + MOPA ROBOT that BOTH vacuums and mops — it has a retractable mop pad arm that lifts up and over the robot on carpet (so it never drags a wet pad onto carpet) and lowers on hard floors. So it has both vacuum symptoms (brushes, bin) AND mop symptoms (water tank, pad).
- MoppingFill the water tank and fit a clean pad for mopping; 'not mopping/streaking' is usually an empty tank, a dirty/dry pad, or the mop arm not deploying (it stays retracted on carpet by design). It uses plain water or iRobot-approved solution only.
- Docking, brushes & sensorsCharges at its dock (Clean Base self-empty on the Combo j7+ handles dry debris, not the water); clear hair from brushes/wheels and wipe sensors if it gets stuck.
- Retractable mopSenses carpet and retracts the mop fully to the top of the robot. The tank takes water or Bona floor cleaner.
- SmartScrubMops back and forth with consistent pressure and 2x deeper scrubbing.
- Self-emptyThe Clean Base empties the bin automatically for up to 60 days, and the robot has a 4-stage cleaning system.
Where these figures were read. irobot.com/en_US/roomba-combo-j7plus-robot-vacuum-and-mop/C755020.html (real model C755020, 'Combo j7+') (robot vacuum + retractable mop)
Manufacturer support for this product line. IRobot Support — Roomba support. Official Roomba setup, error, mapping, cleaning and repair support.
Also read for this model. iRobot — Roomba Combo j7+ Robot Vacuum and Mop.
Exact questions
Questions that only have an answer for the iRobot Roomba Combo j7+
My Roomba Combo j7 vacuums but isn't mopping.+
Check three things: the water tank is filled, a clean damp mop pad is fitted, and the floor is set as a mopping/hard-floor area in the app. The retractable mop arm deliberately stays lifted (dry) on carpet so it does not wet it, so it will only mop where the map says hard floor. Streaking usually means a dirty or dry pad — rinse or replace it and refill the tank. Use only plain water or the approved solution, never other cleaners.