20 Most Recent iRobot 5800 Scooba Vacuum Questions & Answers

If your Scooba's Green Check Tank light is coming on immediately on startup, please try the following steps:

1. Remove and reseat Scooba's battery, ensuring that you hear it click into place.
2. Remove and reseat the brush head
3. Remove and reseat the vacuum port and filter. When replacing the filter, be sure to press firmly into the hole. There is a magnet on the filter that must connect with the magnet on the Scooba.
4. Fill Scooba’s Clean Tank with approximately 1 cup of cold water, shake vigorously, and empty it to remove any debris in the tank.
5. Empty the Dirty Tank, refill with water, and slosh it around to pick up any sediment. Empty the Dirty Tank again.
6. Refill Scooba’s Clean Tank with water, adding a pinch or two of table salt. Run the Scooba. If the issue persists, please follow the steps below:

With the tank removed, press the Power button and then the Clean button.

If the robot tries to start a cleaning cycle, power off the robot and repeat, pressing the Power button first and then the Clean button. If the pump makes a “whirring” or squirting sound and the robot does not start a cleaning cycle (Check Tank indicator will light), this indicates that the pump is working. Replace the tank and try starting a new cleaning cycle with the tank on.

If Scooba does begin a cleaning cycle the second time you press the Power and then the Clean button with the tank removed, the pump valve could be blocked with debris. Using a turkey baster, straw or sports bottle, force water through Scooba’s solution valve. Confirm that the baster, straw or sports bottle fits snugly over Scooba’s solution valve, push water through the system at least three times, and then try re-starting Scooba.

Below is a link to a diagram of these steps for visual reference:

Title: Scooba is not putting down cleaning solution
http://homesupport.irobot.com/cgi-bin/irobot_homesupport.cfg/php/enduser/std_adp.php?p_faqid=322&p_created=1167154849

try cleaning the cliff sensors under bumper

I have had the same problem for six months and finally found the solution.

The problem is that the air duct into the dirty water tank was blocked. The air flows up the black removeable hose, into the dirty water tank and out through the filter. With the air duct into the dirty water tank blocked, no dirt gets anywhere near the filter.

The black removeable hose is the hose in the base of Scooba that the instructions tell the user to clean after each use. Despite cleaning this hose after each use, plenty of cat hair and other dirt passed by the hose and got lodged above it on the tank side of the incoming air duct.

The air duct into the dirty water tank is formed out of the blue plastic the tank is made from. You can find it by looking to see where the black removeable hose lines up with the tank when it is placed on Scooba. It is the same diameter is a the removeable black hose so you can't miss it.

Getting the gunk out is tricky because there is a bend in the duct. I fished most of it out with my fingers and then poked a bendable plastic spoon handle to get further down the duct. I then flushed water down it and shook the tank to get more out. After cleaning, water dripped into the air vent would come out the dirty water tank drain hole with little resistance.

After cleaning the air intake duct I ran my Scooba and got dirt in the filter for the first time in months.