Question about iRobot 5800 Scooba Vacuum

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Scooba does not release water

When I run scooba the water stays in the tank. It does clean the floor with water. When it first starts the water is releasing but, after about a minute the water stops and there's no mop action. It only vacuums and no water!

Mr T

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  • roddy-mceach Feb 15, 2009

    turn the scooba on, and off it goes... for about a 30 seconds, releases no water, then tells me to "check tank"! I filled it 30 seconds ago!! whats wrong?

    Thanks for any help.


  • Anonymous Feb 25, 2009

    scooba does not release any water

  • Anonymous May 17, 2009




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I tried the straw on the solution valve. Worked last time, but no luck this time. I ended up using a can of compressed air on the solution outlets on the bottom of the unit (in the trough in front of the brush).

Posted on Jul 07, 2009

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Mine does that sometimes. i have to put hot water in the dirty side and shake it really good and empty the water out and then try it again. sometimes it works the first time other times i may have to repeat the procedure a couple of times.

Posted on Jun 28, 2009

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Get a straw and blow in the solution valve its becide the battery this may help and flush out tanks with salted warm water .

Posted on May 18, 2009

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Posted on Jan 02, 2017

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1 Answer

My Scooba (brand new battery) won't spray water out to clean the floor. What should I do? I've tried over and over. It moves in circles but no fluid will come out to clean the floor!!!!!

Ive had that problem and what i did was put the tank in the kitchen sink and turned the water on blast and let it everything flush out through the diffeiirent outings in the tank. Also (i think this was the actual solution) i got the little blue squeeze ball thingy and placed the tip over the little white tip (or light blue tip) that lays on top of the unit (you will see it after you remove the tank) and just squeezed and squeezed the ball over and over and over again. Its the same way as you would prime the tank to get the water flowing. I noticed when i did that a tiny white piece of lint came out as it was probably clogged. but nevertheless, that is alway a must, to prime the machine by placing the tip of that squueze ball over the little nozzle tip thats on top of the unit (which is under the tank itself). )

Aug 28, 2010 | iRobot 5800 Scooba Vacuum

1 Answer

After running for a normal cleaning cycle only about 1/3 of the water from the clean water tank has been moved to the dirty water tank.

this is by design. not all the water from the clean water tank will end up in the dirty tank, some is left on the floor, some evaporates.

May 11, 2010 | iRobot 5800 Scooba Vacuum

1 Answer

My Scooba floor cleaner "check tank" light stays on even after it's refilled and everything cleaned but still will not work. It just keeps beeping at me when I try to start it. How do I reset it or get...

Flush out the solution valve with water (aka "prime the pump"). Use water, not just air, because water will clear any obstructions that may be in the lines. Also, rinse your tank through the four ports on the *underside*-- one round, two oval, one large and curved, all four in a row. Rinse them really thoroughly with warm water, then refill the tank and try the Scooba again. If it doesn't work, call us: 1-877-855-8593.

Aug 16, 2009 | iRobot 5800 Scooba Vacuum

1 Answer

Scooba problem

Does it put down clean water onto the floor? If so, rinse the four ports on the underside of the tank really thoroughly. You might have a clog; it's not difficult to dislodge it if you use enough warm water. Also make sure that the squeegees on the cleaning head cartridge (which holds the brush) are straight and in good condition.

If it doesn't put down water at all, try the tank rinse anyway, as it can help with that issue, too.

Jun 20, 2009 | iRobot 5800 Scooba Vacuum

1 Answer

Scooba says check tank and won't move.

Rinse the four ports on the underside of the tank with warm water, particularly the round opening that covers your Scooba's vacuum port and the curved one that matches the filter. Odds are, there's a clog in there and your Scooba knows it. Rinse the two oval ports as well, as thoroughly as you can.

Also, try priming the pump with water. The iRobot website shows how to do this under the Scooba troubleshooting section.

Then run the unit with water and vinegar (in place of the Clorox Cleaning Solution) if possible.

May 10, 2009 | iRobot 5900 Scooba Robotic Wet/Dry Vacuum

4 Answers

I cant open my scooba

If you haven't used the scooba before or if it has been a long time, the pump may need to be primed.  Go to irobot and do a search for how to do this.  I also had difficulty opening my scooba.  Press down with the palm of your hand on the back silver plate as you push down on the silver release handle.  This worked for me.

Apr 28, 2009 | iRobot 5800 Scooba Vacuum

2 Answers

My scooba 5810 won't run

Fill the dirty water tank with hot water and giving the tank a good shake then pour the water out. Continue to do this until the water coming out of the dirty side of the tank is clean.

Jan 18, 2009 | iRobot 5800 Scooba Vacuum

1 Answer

Scooba not picking up dirt

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.

Feb 09, 2008 | iRobot 5800 Scooba Vacuum

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