This is by far the hardest thing to replace on your vacuum. You may try to replace these, but please be cautious because if you are not careful you will literally destroy your machine.

  1. Flip the device over onto its back
    • Flip the device over onto its back

    • Find the side brush, and unscrew the single screw that connects to brush motor by using the Phillips head #2 screwdriver

    • This screw doesn't completely come out of the yellow side brush

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  2. Locate and Remove the four screws on the back panel by using Phillips #1
    • Locate and Remove the four screws on the back panel by using Phillips #1

    • Once the screws are loose gently pry the back plate away from the body by using the spudger tool.

    • The screws don't completely come out of the panel, but it will still come apart once unscrewed.

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    • Grab the two pieces of green tape with your thumb and index finger

    • Pull up on the battery in an upwards direction to remove it

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    • These are the contact points on the Roomba for the battery

    • These are the contact points on the battery

    • If these contact points are dirty, they can be cleaned with a moist microfiber cloth (distilled water recommended)

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    • Remove the ten 11mm screws that hold the front bumper to the plastic bumper protector with your Phillips #1 screwdriver.

    • Pull the plastic bumper protector up and off of the bumper.

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    • Flip the Roomba back over, so you are viewing the top.

    • Pull up on the front bumper to remove it.

      • Be careful not to pull too hard because there is wiring attached to the bumper.

    • Remove the two 7mm screws with your Phillips #1 screwdriver, holding the wire sensors in place to the front bumper.

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    • Remove the dust bin by pushing on the button for the dust bin removal

    • Pull the dust bin out

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    • Pull up on the silver handle to release the top protectant plastic

    • Remove the top plastic carefully

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    • The outside six - 10mm screws and the inside set of four - 10mm screws are the same here, use your Phillips head #2 to remove them

    • Use your Phillips head #0 to remove the one - 7mm bottom center screw

    • Use your Phillips head #2 to remove the two - 8mm screws by the handle

    • Push down the two release points to pull the plastic piece up

    • Pull the plastic piece up

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    • Pull the silver tab, and clear tinted display off

    • Remove the 4 - 9mm screws holding the display with your Phillips head #0

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    • Remove the display

    • Remove the plastic protectant film from the motherboard

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    • Remove the five - 8mm screws with your Phillips head #1, holding the mother board in place to the Roomba

    • Pull the mother board up off the Roomba

      • Be careful not to pull hard because there are a lot of wires attached to the motherboard

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    • Remove the three sets of wires plugged into the back of the motherboard

      • Some of these can be difficult to remove, and you may need the help of the metal spudger

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    • Flip the motherboard over

    • Remove the five wire connections using the same method as the previous two

    • Lastly, remove the bumper sensor wires from the motherboard

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    • Insert metal spudger between cliff sensor and body of Roomba and push down and away from yourself

    • After releasing the snap lock slide the cliff sensor down to free it from its place

    • Repeat for the other cliff sensors

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    • Here are two pictures that should show what your Roomba fully disassembled looks like

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To reassemble your device, follow these instructions in reverse order.

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Member since: 01/22/2015

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Cal Poly, Team 21-20, Maness Winter 2015 Member of Cal Poly, Team 21-20, Maness Winter 2015


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Thank you very much for this useful guide. I cleaned properly my cliff sensors and all the Robot with the air compressor. Now it works properly and it looks like new!

florinabeakovic23 - Reply

Very complete instructions! Thank you so, so much! There were a few points along the line that I thought I was going to break something but trusted your instructions and everything worked out perfectly! I actually didn't replace my Cliff sensors but took them apart as somehow they had gotten dirt inside of them. My floors are finally clean again and you saved me between 300 + $400!

Maria Christiansen - Reply

Thank you. My roomba was stopping every 5 minutes or so with the “move to a new location” error message. I took it apart following this tutorial and opened the cliff sensors to clean inside of them (with a q-tip dipped in alcohol). After putting everything back together my old roomba is working perfectly again! Thanks for the detailed instructions! The color coded pictures with the screws was most helpful!

junhita - Reply

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