Question about Roomba Irobot 770 Vacuum Cleaning Robot by iRobot

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Roomba 770 totally dead

It worked perfectly one day, docked itself and the next day I noticed the clean light wasn't on at all. Swapped batteries with my 595 and same thing 595 worked with the 770 battery). I contacted irobot and they're sending me a new one. Just wondering if there's a fix.

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: Roomba Charging? Flashing Lights

Call iRobot. Your charger is broken.

Posted on Aug 25, 2008

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  • 17 Answers

SOURCE: roomba 4108 does not charge

Try resetting your Roomba by removing the battery, unplug the charging connector, hold down the Power button for 30 seconds. This will reset the charging system, replace your battery, connect your charger and see what happens. By the way do you also have a homebase ? If so try that too

Posted on Jan 10, 2009

  • 1 Answer

SOURCE: Roomba Scheduler will not dock

Clean the contact on the robot and it will dock.

Posted on Mar 20, 2009

  • 8 Answers

SOURCE: My Roomba 560 does not automatically dock as advertised either..

You may not believe this, but the new 500 series lighthouse virtual walls have both infrared and radio frequency communication. How they work and associate with the Roomba is pretty complicated. The best posting I've ever seen about how they work is here:
http://www.robotreviews.com/chat/viewtopic.php?f=1&t=11048

Check out that link to understand how the communication works.

If your Roomba is contained by the virtual walls, then you can assume the IR sensor on your Roomba us good....you should test that though. Then you might have to replace the "home base" which could have a bad IR transponder . New ones can be found for reasonable price at www.RoboticVacParts.com or you could order straight from iRobot for twice the price.

If the Roomba is not contained by the virtual walls, then the IR sensor on the Roomba is likely bad and you'll need to change the bumper on your Roomba. Again ....parts are available through ebay, or www.RoboticVacParts.com. Follow this link if you need it.
http://cgi.ebay.com/NEW-Roomba-500-series-white-bumper-510-530-532_W0QQitemZ270400281066QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ef51cd9ea&_trksid=p4634.c0.m14.l1262&_trkparms=|301%3A1|293%3A1|294%3A30


Posted on Jun 20, 2009

  • 61 Answers

SOURCE: my Roomba is moving real slow and turns very often

There's a chart in the back of your manual that lists the beep codes. If it says "contact customer support" under the "troubleshooting" section, call 1-877-855-8593. We'll be able to diagnose the problem based on the beep code and hopefully get your Roomba up and running again!

(Can't find your manual? Visit http://homesupport.irobot.com and search for "beeps" after selecting the correct Roomba category.)

Posted on Sep 02, 2009

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1 Answer

Why is there no green light or red docking showing it is charging?


Sometimes the contacts between the battery and the iRobot get corroded...you can try using a small piece of sandpaper to lightly scuff/clean the battery contacts. Once you put it back together, try the reset function mentioned previously.

May 26, 2015 | iRobot Roomba 530 Robotic Vacuum

1 Answer

Why roomba clean for 2 minutes then returns to dock?


I suspect the battery is about dead. It keeps coming back for more power.


Run it away from it's charger, force it to run until it dies. Put it onto it's charger and let it charge a long time (Solid green light). Then run it again till it dies and repeat. This will perhaps force the battery to develop a longer memory

May 09, 2014 | iRobot Roomba 4210 Bagless Robotic Vacuum

1 Answer

Stops


I had the same problem when I renovated my kitchen. With boxes of stuff everywhere it was impossible to use Roomba. When I tried to use it again a few months later, it would stop after only a few minutes work. I had to buy a new battery which cost in excess of $100. Its better to loan it to a friend to be used than to put it into storage.

Apr 30, 2013 | iRobot Roomba 530 Robotic Vacuum

1 Answer

Irobot roomba 500


If you're sure the battery contacts are clean and the battery really is charged, then there is faulty circuitry within the Roomba that would have to be repaired or replaced.

Confirm that the battery is inserted with the metal contacts down so they make contact with the spring terminals in the battery compartment.

Visually confirm that the metal contact plates on the battery pack, and the spring terminals in the battery compartment are clean and shiny. If not, wipe with a clean cloth or paper towel, its OK to use a little water or rubbing alcohol on the cloth, if needed, and then dry it.

Visually confirm that the metal contact plates on the Roomba, and the spring terminals on the docking station's home plate are clean and shiny. If not, wipe with a clean cloth or paper towel, its OK to use a little water or rubbing alcohol on the cloth, if needed, and then dry it.

If you have a volmeter, measure the voltage between the contacts on the battery pack If it isn't something in the neighborhood of 14 volts and is 11 volts or less, the battery isn't fully charged.

Reinstall the battery.

For the moment, please connect the power adapter directly to the Roomba rather than the docking station to eliminate one possible faultly connection.

If the battery wasn't fully charged, or you weren't able to test it, try to charge the Roomba and then retest the battery voltage if you can. If the battery voltage was higher immediately after charging, but didn't get to 14 volts, the charger is good, but battery needs to be replaced. If the battery voltage was unchanged after attempting to charge the Roomba, the charging circuitry may be faulty. If there was no light patterns when you tried to charge it, and it was plugged in to a good outlet, then the power adapter or charging circuitry is definitely bad.

If you have no voltmeter and you cleaned the contacts and tried to charge the Roomba and it works, use the Roomba and then recharge using the docking station and see if it was just dirty contacts or it won't charge through the docking station. If it didn't work, you'll need to figure out if its the battery, the charging circuitry in the Roomba, or the power adapter. If there are no lights when you try to charge the Roomba, then Either the power adapter or the Roomba power circuitry is defective, but without a voltmeter you can't find out which one, and there's no way to know if the battery is good or bad, but you know Roomba wasn't trying to charge it. If there are lights when you try to charge the Roomba, then at least you know the power adapter is good. Unfortunately, without being able to test something there's no way to distinguish between a charger that won't deliver a charge to the battery and a battery that won't accept a charge. If you want to take a guess then a bad battery is more common and less expensive to fix.

Jul 07, 2012 | iRobot Roomba 560 Robotic Vacuum

1 Answer

IRobot 530 charges intermittently


Reset the Roomba: hold down "spot" and "dock/demo" for fifteen seconds, then release and listen for the tune. Then charge the Roomba overnight. The next time you run it, the unit should run longer. If not, call support and let them know you may have a battery problem. 1-877-855-8593 (I strongly encourage you to have the Roomba with you if you call.)

Aug 30, 2009 | iRobot Roomba 530 Robotic Vacuum

1 Answer

4210 and 4230 won't charge-new batteries.


I've been having the same problem myself. The charger is apparently built into the roomba main board. From what I've read there are two MOSFETs U2 & U4 that can go out and require replacement to fix the problem. More info here
http://www.robotreviews.com/chat/viewtopic.php?f=1&t=3909

Jun 28, 2009 | iRobot Roomba 4210 Bagless Robotic Vacuum

1 Answer

My Roomba does not want to dock


Need more info.
Does the unit go into search mode? "SPOT & CLEAN" flashing? It actually tries to search?
Do you have another roomba to test your dock on to see if IT will dock? If it tries but just cant, then either the dock transmitter, or the roombas receiver is dead. (The round antennae thingys on the dock and the bumper) replace these would be the first point.

Jan 21, 2009 | iRobot Roomba 4210 Bagless Robotic Vacuum

1 Answer

Roomba Scheduler will not dock


Clean the contact on the robot and it will dock.

Nov 16, 2008 | Roomba Robotic Floor Bagless Vacuum

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