Hi!
I require your help regarding a problem I’m encountering.
The litter robot is no longer operational.
When powering on, the blue light flashing, upon reset, yellow light flashes quickly.
We don’t know what else to do to troubleshoot.
We have cleaned the windows from the DFI-Sensors, without any results.
Please help us and our 6 cats ;(
Our Order ID: 1900012654 from 26. December 2019
Hi @Robert_K and welcome to our forum!
We are sorry to hear about your problem with the robot.
If the yellow light is blinking twice per second:
The Anti-Pinch safety feature is two pins connected to the motherboard that must touch each other continuously.
If they are separated, you will have an alarm(yellow blinking light). The Anti-Pinch safety is located in the top back left of the Litter-Robot base. You will need to unplug the unit, remove the bonnet, the globe and the drawer.
It is ‘‘Two Metal’’ pin. With a flashlight, you should be able to see if they are touching each other or not. If they are not touching each other, try to re-position it with a flat screwdriver by pushing them upwards.
This video can help you locate the pins: https://www.youtube.com/watch?v=FJkQTXxkXXA
Please check it and tell us the result.
The “Metal-Pins” are touching each other. What else can i do?
Hey @Robert_K !
Have you done all steps from this troubleshooting: Litter-Robot III Open Air - Blue Blinking Light
If yes, and it doesn’t solve the issue, then DFI sensor should be replaced.
Sorry, i have tried all these steps without any results. It doesn’t changed anything ;(
Still blinking blue light or fast yellow blinking if i press reset.
In this case we can send you new sensor (when it is back on stock).
You can replace it using this video: https://www.youtube.com/watch?v=zD3dsJsVVsc
Are you able to do this?
It looks easy for me. I think i’m able to do this.
Hello, DFI sensor are arrived and installed. The problem are resolved and our litter robot works good, since the first day. 
Thank you for your help and support and best wishes for christmas.
You are welcome
Have a nice holidays too!
Hi - I have exactly the same issue - blue and yellow blinking lights. Sensors are touching.
Hello @Ukkiwiwino and welcome to our forum.
Please give us your order ID and a serial number of the robot.
Thank you.
Serial number: Lr3109695
Order # 1500040010
Thanks in advance!
Hi @Ukkiwiwino!
Thank you for your reply.
It seems that your robot is out of warranty.
In this case, we recommend you to buy and replace DFI sensor and anti-pinch pins.
You can buy these here:
These videos can help you replace these parts:
https://www.youtube.com/watch?v=FJkQTXxkXXA
https://www.youtube.com/watch?v=zD3dsJsVVsc
Feel free to ask anything else.
I am experiencing the same issue with blinking yellow light. You say you can see the pinch sensor with a flashlight, but I don’t even know what I’m looking for. Do I have to completely disassemble the machine to determine if they are or are not touching? I’ve watched the videos and do not know what to do.
My SN is lr3ci111722
Order #100398572
Hi @darharas and welcome to our forum.
We are sorry to hear about the problem.
Is yellow light blinking slowly (once per second) or quickly (twice per second)?
What happens when you press RESET button?
Also, it seems that you bought your robot directly from Litter-Robot and not from RobotShop right?
Thank you.
Hello,
I have the exact same problem 
I cleaned all the items as described in the troubleshooting…
SN: LR3CI487785
order # 1182081
Thanks in advance!
Hello @Marleen3700 and welcome to our forum.
Sorry to hear about the problem.
We will send you an email with troubleshooting steps and some additional question.
Please have a look and reply.
Thank you.
