Trouble Messages: Junior

Note: This article outlines troubleshooting guidelines for Junior. Go to for troubleshooting details of other bObsweep models such as Bob PetHair Vision Plus, Bob PetHair Vision, Bob PetHair SLAM, Bob PetHair Appetite, Dustin, and more. 

When Junior is having trouble with one of his parts, he stops cleaning and displays a “trouble message” on his screen.

Follow along with the video below to find out the most probable solution to each of Junior's Trouble Messages. Scroll down to read a breakdown of each one.

Solutions for Junior's Trouble Messages:

If Junior's issue persists after following all the suggested steps, please contact our customer care center for further assistance. You can reach them at, or 1-888-549-8847 for support in the US & Canada. Our business hours are 8:30 am - 5:30 pm Monday - Friday, and 10 am - 2 pm on Saturday (Pacific Standard Time).

Edge Sensors

If Junior continues to have trouble with his edge sensors while working on dark­colored floors, then you may need to deactivate them.
What to do:
To deactivate the sensors, hold down the CHECKUP button on Junior. The 4 ovals at the top of his screen will begin to flash. Release the CHECKUP button after the bars remain still. Repeat this action to enable the edge sensors again.

Touch Sensors

If Junior feels something “funny” going on with his touch sensors, then there is most likely some small debris trapped underneath his bumper.
What to do:
Slowly and carefully tap on Junior’s bumper from one end to the other to release the obstacle, or use compressed air to clear the space of debris.
Press the corner ends of the bumper until you hear a tiny “click” sound. If the bumper is not clicking on its ends, then the touch sensors may need to be replaced.

Left Wheel

If Junior feels something “funny” going on with his left or right wheel, then there is most likely something blocking it.
What to do:
Use the cleaning tool or compressed air to remove any dust or debris that may be jamming the wheel

Main Brush

If Junior feels something “funny” going on with his main brush, then there is something preventing it from moving freely. You will need to remove the main brush using a flat head screwdriver.
What to do:
Clean the brush thoroughly from end to end. You may use a pair of scissors to cut hair or thread wrapped around the brush, or a pair of tweezers to remove congestion from the square metal indentation where the main brush is held. When you reinstall the brush, make sure the square end is lined up with the indentation inside Junior.
If Junior has trouble cleaning on a shag carpet or rug, you may remove his main brush and see how he performs without it.

Obstacle Sensors

If Junior feels something “funny” going on with his Obstacle Sensors, then they are most likely blocked or dirty.
What to do:
Wipe the translucent strip on Junior’s bumper with a damp cloth or remove to clean underneath it.

To ensure nothing is jammed underneath the bumper, gently tap it or use compressed air to clear it of debris.


If Junior feels something “funny” going on with his dustbin, then it is most likely improperly installed. Or, the metal contact points on the dustbin’s bottom or inside Junior are dirty.
What to do:
Remove Junior’s dustbin and empty it. Turn the dustbin around and gently wipe the two metal connectors on its bottom. Lastly, clean the metal contact points in the empty space inside Junior before replacing his dustbin. Place the dustbin back in place until correctly installed.

Power System

If Junior feels something “funny” going on with his Power System, then Junior’s battery has absolutely no juice left or has loose connection.
What to do:
Check the battery connection and place Junior directly onto his charging station, and allow him to charge overnight.
If this fails to resolve the issue, then Junior may need a new charging station. In this case, unplug the charging station and plug the adapter directly into the inlet on Junior’s side. Allow him to charge for a few hours. If connecting the adapter to Junior fails to wake him, he likely needs a new charging adapter.