iFixit - Answers With Device "iRobot Roomba 690"

iRobot Roomba 690: My roomba circles and goes backwards like it doesn’t know what to do.

Tue, 01 Mar 2022 18:39:54 -0700

My roomba 690 goes backwards and circles like it doesn’t know what to do. I’ve replaced new cliff sensors, wheels, bumper sensors, IR sensor, and the rim that has the tiny bulbs. I’ve reset it and am wondering is it most likely the mother board? Could it be the battery? Any help would be appreciated.

iRobot Roomba 690: Replacement Battery for iRobot Roomba 690?

Fri, 29 Dec 2023 11:08:11 -0700

Hey Fixers,

I am looking for the replacement battery for the iRobot Roomba 690. The iFixit site has a battery for the 691, but I’m not sure if it’s the same format since the 691 originally spec’d to have a 60 minute runtime and the 690 has a 90 minute runtime.

Does anyone know if the iFixit battery is the same as the 90 minute Li-ion from iRobot? Thanks!

iRobot’s official site lists:

Roomba® 1800 Lithium Ion Battery, Item # 4502233, $89.99, but no further battery specs.

iFixit’s site lists:

iRobot Roomba Battery for 680, 681, and 691, Item code: IF361-012-1, $59.99

Part #: 4502233, 4374392

Watt Hours: 74.88 Wh

Voltage: 14.4 V

Milliamp Hours: 5200 mAh

⟐ Edited December 29, 2023 at 11:08 MST

iRobot Roomba 690: How do I replace the main circuit board?

Tue, 20 May 2025 09:33:26 -0700

I've replaces mot of the parts in the Roomba 690 over time, including the brush motor, so I've figured out how to disassemble most of it. However this time it looks like the main board is faulty, as the the Roomba refuses to recharge. I sometimes get a charging error 3 or 6 but usually it just chirps every couple of minutes.

I had been able to connect occasionally through WiFi, which showed that the battery was too low to start a job. However, after trying a reset, I can't get it to reconnect.

I've figured out how to remove most of the parts, so there are no screws visible from below and I've got everything off the top that I can, including the top arc piece that seems to be decorative - it's got hinges at each end but no electrical connection. But I can get the plastic circle off the top (the part that surrounds the buttons) nor the main side panel (the part that goes from one side of the brush bay right the way around to the other side and also holds the bumper in place). I can pry it off a little all the away along its outside edge, but something it still holding it in place.

I suspect that there could be some screws securing it that are covered by the plastic disc surrounding the control buttons, but that piece seems to be held even more securely.

Any ideas? The main board is under there but I can't figure out how to get to it.

iRobot Roomba 690: Unit running on its own

Sun, 04 Jun 2023 14:54:50 -0700

In the last few days, my unit starts running and cleaning in the evening. I have no schedule set up, have had the unit for about 9 yrs, and has never done this before. What can I do to fix this.

liladewilde@hotmail.com

iRobot Roomba 690: Roomba 690 error “Q” clean brushes

Fri, 29 Dec 2023 10:09:48 -0700

Starts vacuuming then stops and says error Q, clean brushes. The brushes are all clean. Is there a reset for this issue?

⟐ Edited December 29, 2023 at 10:09 MST