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Roomba Vacuums | Answered on Mar 02, 2019

I'm far from a Roomba expert and only clicked on your question out of curiosity given my background and as there was a similar question earlier Id passed.

A little research... Roomba NiMh battery pack is 14.4 v full charge. NiMh charging is a bit complicated, suffice to say it will eventually go well over 16V.

I would expect the charging station to have an initial charge voltage in excess of 12.5V. What I don't know is if its always on or waits to see if a load (roomba) attaches and then turns on its output.

So if you measured the power, contacts on the charger with a voltmeter and you get better than 12V likely its good, but really need to know what the voltage is when Roomba (with nominal battery pack) is docked.

Its likely the battery pack in the Roomba has a bad cell and will need replaced. You could measure the battery voltage but likely its low from not taking a charge. If its 14+ then the charger is working and the Roomba is misreporting.

Roomba Vacuums | Answered on Jan 30, 2019

Selecting the Wi-Fi connected Roomba robot language.
Roomba comes with a default language pack for the robot's spoken messages. Each language pack vary by region.
  1. Open the iRobot HOME App and select More ? Settings ? Robot Language.
  2. Choose either from your robots Installed Languages or select from the Additional Languages.
  3. On Roomba 900 Series and i Series you can choose either from your robots Installed Languages or select from the Additional Languages.
The factory default will return the robot's languages to the default pack that came with the robot.
Languages can only be changed when on your local Wi-Fi Network.


Roomba Vacuums | Answered on Jan 29, 2019

As with all vacuum cleaners, the unit can get dirty inside. There is a sensor under the brush unit that hears dirt hit it and triggers the circular cleaning action. This sensor looks like a dime sized hole with a bronze piece inside. Also the unit can be disassembled by removing 4 screws on the bottom and removing the top.

Roomba Vacuums | Answered on Jan 20, 2019

Hello. I had same problem. I cleaned casters but still got extractor error. Problem was one of the casters would not spin as well as the other. When sitting in the unit , you should be able to hand turn them. What I did was take off the yellow cap and then use pliers to hold the metal part and manually turned the caster to loosen it up and get it to spin again . Some hair was knotted holding it back and this helped me clean out / clear out the rest of the debris. Once I got it spinning again, worked find. Hope this helps.

Roomba Vacuums | Answered on Jan 09, 2019

Click on the above link and you will be able to download your manual.
Semper Fi,

Roomba Vacuums | Answered on Jan 07, 2019

There are optical sensors by each wheel and they can become dusty and need cleaning.

Roomba Vacuums | Answered on Dec 15, 2018

If you get a red triangle with the two tone beep, and no voice prompt, roomba 770 runs for a few minutes or just immediately goes to red triangle...if you have thoroughly cleaned moving parts and find no obstructions, you may have the problem I had that stumped me for a week. Remove the trash bin, with roomba upside down, and there are 4 silver contacts that connect to two metal tabs on the trash bin. Over time the contacts lose some of their contact pressure. Use needle nose pliers to slightly rebend them so they make good contact to the trash bin contacts. These contacts feed the vacuum motor inside the trash bin. That fixed mine.

Roomba 770... | Answered on Dec 12, 2018

Cynthia I recommend going to https// you should get direct and accurate help. marcus

Roomba Vacuums | Answered on Dec 08, 2018

battery dead or failing

Roomba Vacuums | Answered on Nov 19, 2018

on screen menu setting in display setting/ or main settings. change to 30 seconds

Roomba Vacuums | Answered on Nov 05, 2018

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