Question about iRobot 5800 Scooba Vacuum

1 Answer

Scooba 5800 Power button Red Blinking (Continued)

Hi, I did check the voltage measurements as shown on my attached picture. I did check the power supply into the Scooba is 22V as the manual said. Step 1: it shows the battery is low (3V). Step 2: it shows the Temp. senor line is 5 V and already pumps into the battey, +/- ve terminals are almost 0V (not activated yet) Step 3: it shows the Temp. senor line dropped to 2.5V (means with load). the +/- ve terminals has slightly higher voltage that the battery. I don't know the charging voltage pattern of Scooba. (Supposes 14.4 V?) Even the Power button Blinking Red, I have monitored it for 12 hours and found the voltage of the battery is keeping growing up 10.00 V as it is only 3V at the beginning. Any advises on battery or Scooba, which one has problem? Any suggestions appreciated Thank you very much

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.

    Vice President:

    An expert whose answer gotĀ voted for 100 times.


    An expert who has written 50 answers of more than 400 characters.

  • Expert
  • 135 Answers
Re: Scooba 5800 Power button Red Blinking (Continued)

As for which one has the problem, I would say it has to be the battery. Rechargeable batteries of all types are known to have similar characteristics, one of which is discharging the batteries to maintain good rechargeablility. At least one person has demonstrated this for the Scooba battery in the forums when he brought a "dead" battery back to life. He allowed the battery to slowly and completely discharge using a 12-volt automobile bulb, followed by recharging the battery on the Scooba external charger. This procedure brought his "dead" battery back to a full charge! However, other forum members have reported that many have experienced problems with Scooba battery life, and that as a consequence of this iRobot will replace your battery if you call them and report a short-life battery problem. You can contact iRobot at (800) 727-9077 if you would like to report a battery problem and request a replacement.

Posted on Aug 11, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

IRobot Scooba 5800 "check tank" light

Why buy something used that is not in perfect operating condition? There may be other problems yet to be discovered.

Dec 31, 2013 | iRobot 5800 Scooba Vacuum

1 Answer

Scooba 5800 starts to charge then beeps loudly

1) test the batteries very well in another device.
2) test the charges if working properly.
3) test the power inside from scuba, some electronic components like diode, or capacitor is draining the batteries. repair or rreplace.
God bless you

Sep 19, 2012 | iRobot 5800 Scooba Vacuum

1 Answer

Have Scooba 340 that won't power on after battery fully charged!

No repair services anywhere, unfortunately. It does sound like you might need a new battery, but the issue could also be the power button. I suggest giving us a call at 1-877-855-8593 so that we can more accurately determine what the problem might be and how we can most efficiently help you to solve it.

iRobot Tech Support

Aug 15, 2009 | iRobot 5800 Scooba Vacuum

1 Answer

My iRobot scooba won't turn on after a full charge

Do you have the charger terminal, or do you have the charger that you have to take out the battery and charge. Because I have found that my base terminal charger works better than the battery charger that needs the battery to be removed to charge.If you have the terminal charger and the power light is green when it is in the charger I would start from the terminal

Jul 26, 2009 | iRobot 5800 Scooba Vacuum

2 Answers

Irobot scooba 5800 spins quickly then sets off backwards

Remove and clean all of the wheels, and make sure the cliff sensors under the bumper are clean. Tap the bumper with your hand-- really smack it a couple of times. It sounds like the Scooba believes it's stuck against an obstacle.

May 10, 2009 | iRobot 5800 Scooba Vacuum

1 Answer

Scooba won't turn on

It sounds like you've got a finicky power button. Not a lot that can be done about that, but you may want to try getting your hands on the old-style Roomba remote, the black one. The power button from that will power on a Scooba, though you can't start a cleaning cycle that way. This might allow you to bypass the Scooba's power button altogether.

May 08, 2009 | iRobot 5800 Scooba Vacuum

10 Answers

Scooba in diagnostic mode

This is a common issue :)
his morning, I turned on my Scooba and it started beeping a scale of tones and blinking all its lights in sequence. After an hour or so of resetting, cleaning, disassembling, researching, and scratching my head, I stumbled across the solution on Roomba Review. But, for me at least, it was even easier than all of that. I don't have any of my own pictures for this procedure, but it's pretty straight forward.
  • Remove the battery and power.
  • Remove the two screws holding the bumper shell in place and remove it.
  • Carefully peel up the sticker with the control buttons on it. This sticker is actually the control panel. There is a data cable attached to it just below the "Clean" button. Be careful not to break it!
  • Clean the surface under the sticker with some isopropyl alcohol. (I didn't actually have to do this, but I'm sure it doesn't hurt.)
  • Gently replace the "sticker" (i.e. control panel) and make sure it's completely flat.
  • Check to see if it works again. If not, repeat.
  • Replace the bumper shell and screws....

Jan 23, 2009 | iRobot 5800 Scooba Vacuum

1 Answer

Service code 1

a red 1 is a pump malfuntion

Jan 02, 2009 | iRobot 5800 Scooba Vacuum

3 Answers

Scooba circles and only goes backwards.

try cleaning the cliff sensors under bumper

Dec 13, 2008 | iRobot 5800 Scooba Vacuum

1 Answer

Scooba 5800 Power button Red Blinking

You probably have the manual, but here's the link to the Scooba 5800 manual anyway - just in case this would be useful to you: --> You could use a voltmeter to check the battery, but only a few months use shouldn't be enough to wear it out. If you don't have a load-tester to verify the battery's load-capacity, then you can check the voltage drop. (Assuming you can get it to contact the Scooba's circuits.) To do this, just check the battery voltage, apply a load by inserting it in the machine and turning it on, then check the battery voltage again. An excessive drop in voltage may indicate the battery needs replacing. However, the red blinking light is Scooba's indicator that it doesn't detect the battery at all. The first thing to do in this case is to clean the electrical contacts on the battery and in the Scooba. Use a damp cloth and a bit of toothpaste to rub the contacts clean on the battery and in the machine. (Toothpaste has mild abrasives in it and will clean the electric contacts without damaging them.) Make sure that both the battery and the Scooba are clean and dry before re-inserting the battery. Also, if the electric contacts in the machine are flexible matal tabs then verify that the tabs are standing up high enough to make good contact with the battery contacts. Hopefully the battery just needs it's contacts cleaned for your unit to work, but test the battery if you are sure that they are clean and seated properly to the contacts in the machine. If the battery appears to be failing, then contact to cheack and see if they are still covered under your machine's warranty. Hope this helps! :)

Aug 06, 2007 | iRobot 5800 Scooba Vacuum

Not finding what you are looking for?
iRobot 5800 Scooba Vacuum Logo

926 people viewed this question

Ask a Question

Usually answered in minutes!

Top iRobot Vacuums Experts

Richard Roth
Richard Roth

Level 3 Expert

9472 Answers

Brad Brown

Level 3 Expert

13317 Answers

The Knight
The Knight

Level 3 Expert

66352 Answers

Are you an iRobot Vacuum Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides