Mathieu, following up on yesterdays post… I discovered that the problem was coming from within the gearbox itself. After taking it apart, I found that the second gear from the axle was skipping along the adjacent gears while rotating counterclockwise (the globe reverse cycle). The reason it was skipping is that the holes in the front plate and back plate of the gearbox housing where the faulty gear axle is seated have become bored out by the sprocket… essentially so they are now elliptical. So that little gear axle is loosey goosey. I don’t know why it only skips in one direction and not the other, but nevertheless it’s not fixable, at least for me. I figured I probably cannot purchase just the gearbox housing plates, so I placed my order with you for a new motor last night. I wanted to post this as it may be helpful to you or someone else in the future. I hope the new motor comes soon- my cat has gotten spoiled and hates his temporary box… doesn’t like to use it and has to be supervised or he will opt for a closet somewhere. it must be like switching from the Ritz Carlton to the youth hostel. Thanks for your quick response.
Litter drawer fills with litter each cycle along with the clumps of stuff. Whats the issue? Its about a fourth of the litter in the dome.
@Melinda Make sure the globe is not overfilled, it should be under the fill line in the globe.
My litter box is cycling to empty like it normally does then it turns back for about 5 seconds then stops and turns back again to the emptying position. Can you tell me why it’s doing this.
Hi Helen,
In order to better serve you, we recommend that you contact us via our support center with a video of the unit so we can determine the source of the issue.
My litter robot 2 has all 3 lights flashing . Motor seems to be rotating very slow . Tested motor and it is still working fine . Replaced sensor harness and checked power cord . Could it be the circuit board that is dead ? None of the buttons do anything and the unit only turns slow with all lights flashing .
Hi,
If you have replaced the sensor harness, this issue is most likely due to the motor itself.
It may be running slower than usual or could have broken teeth on the gear.
We suggest that you replace the motor before proceeding with the replacement of the circuit board.
Also, you may power up the unit without the globe and note if the motor seems to runs slowly.
Verify if the black gear on the motor is loose or free moving, you may tighten the set screw with a 3mm Hex wrench.
Follow instruction: https://litterrobot.kayako.com/article/85-litter-robot-free-moving-gear-solution
Our Litter Robot II is approximately 5 years old and we haven’t had any problems until lately. It will rotate approximately 180 degrees to almost where it should stop. Then the globe starts lifting off the sensors - what I call “jumping off its track” - and won’t do anything but keep going up and down until I lift it up and get it back on track again. Any suggestions?
It seems that the robot is unable to track the globe’s position.
We suggest you replace the harness sensor.
Have LR2 from 2014, motor was replaced under warranty already.
Current behavioral abnormality is that it over-rotates when doing a cycle, then backtracks to stop at about 45’ clock from home.
After reading about the design, I’m pretty sure it’s the hall sensor missing steps.
Just curious, is there a way to fix a hall sensor? Would it miss if it’s just positioned a little improperly?
Also noted is that the rubber liner detaches from one side while it’s emptying and can sometimes obstruct the trap.
Curious if there’s a good way known to keep the liner attached properly to the sides of the drum?
Hello @b4n4n4p4nd4,
Welcome to RobotShop community.
Unfortunately, we don’t have enough information about the sensor itself so the best way to fix this is by replacing it with a new one.
About the PVC liner, it has a grove around the globe to stay in place as well, if the edges of the liner is worn out, maybe it needs to be replaced as well.
Sincerely,
My 7-yr old Litter Robot II just developed the exact same symptom. Upon opening up the base of the robot and verifying all wire connections are in place, I noticed one thing – the safety line switch metal plate was rusty at where it was making contact with a wired sensor metal piece. When a cat is in the litter box, the safety line will get pushed down and pull the sensor away from the safety line switch. When the cat leaves, the sensor will re-connect with the safety line switch. The rust must be preventing a good contact at the safety line switch. I took a piece of sand paper and sanded away the rust. The robot is working again! Thank you so much for the discussion board.
Any LR2 expert here? When my 7 years old LR2 stopped working, I decided to give it a tune up. I replaced the circuit board, motor, and power supply, gliders, among misc items. I verified that the power switch, cat sensor switch and motor connection are still working properly. To my surprise, the unit still won’t power up. The only thing I can’t electrically verify is the hall effect sensor. If the hall effect sensor is bad, would it stop the circuit board from powering up? I have spent about $150 already with nothing to show for, now I’m hesitate to replace the wiring hardness (which includes the sensor). Any help would be appreciated.
Hello @KevinK,
Welcome to RobotShop community.
We are sorry to hear that you are having trouble with your Litter-Robot.
Usually, the sensor harness gives an error regarding the position of the robot, however, in some rare cases, the robot would stop completely and doesn’t show any power.
Since you have already replaced all these parts, you should replace the sensor harness as well.
And check all the connections from the power adapter all the way to the circuit board to see if there’s any damaged or disconnected wire.
Let us know how it goes.
Sincerely,
I was adjusting my litter robot II and accidentally disassembled the entire foot sensor - spring and all. A second nut that fell out in addition to the ‘top’ nut and I can’t manage to get the foot assembly back together and working appropriately. I can’t figure where the second nut goes - if there are any diagrams or descriptions as to to how to assemble, I would greatly appreciate it.
Hello @footinmouth,
Welcome to RobotShop community.
We are sorry to hear that you are having trouble with your Litter-Robot.
Here’s a guide to show you how to assemble the CAT sensor again:
There are other guides for all the parts of the robot so you can follow them to locate the place where the other nut should be installed.
Let us know if you need further assistance.
Sincerely,
thanks - it’s not the sensor I am struggling with but rather the trigger plate/spring loaded foot apparatus. There is a second nut that seems to lock the foot in place but I cannot get it to work again
Hello @footinmouth ,
Thank you for your reply.
If the repair guides didn’t help with your issue, we recommend contacting the manufacturer directly to help you fix this issue:
[email protected]
1-877-250-7729
Sincerely,