Hello,
We have had our litter robot III since last October.
For the most part it has performed quite well.
About a week ago the blue light started flashing even though the drawer wasn’t full.
Now it’s stuck: although I can reset it, after the next cycle it will go back to flashing.
Since then, we have tried the obvious things:
Emptying the drawer and resetting
Turning off and back on
Turning off, unplugging for an hour, plugging in and turning back on
Disassembling the robot and cleaning thoroughly
I found the little sensors on either side of the chute. They had a little litter on them, which I wiped off with a paper towel dosed with Windex.
However, there is a flaw in the plastic on one of them (I think an air bubble) - and I’m wondering whether that is causing the issue at this point.
That said, it used to work, so I’m wondering if there’s something else I can try.
I attempted the hardware reset sequence from a forum topic on the litter robot II; is there anything else I can try for III?
If not, is there a possibility of getting a replacement for the little clear plastic piece that protects the sensor? I would like to avoid sending in the whole base if possible.
The following troubleshooting should resolve the blue light blinking while the waste drawer is empty. Once resolved, the unit should consistently recognize when your cat visits and cycle accordingly.
To troubleshoot the blue blinking, let’s start by power cycling your unit:
1.) Leave your unit powered ON with the blue blinking light engaged & Unplug your power supply from the base
2.) Wait 10 seconds then plug the unit back in
3.) Allow the unit to complete a startup cycle. If the light is solid blue, the code has been successfully cleared. If the light is still blinking, let’s proceed with troubleshooting. Let’s empty the drawer if it has waste and reinstall the bag before proceeding.
Note: If you are using a dark colored bag, always tuck it into the tabs.
Turn off the unit and Unplug the power from the base
Remove the Bonnet and the Globe
Inspect the top of the Base where the Globe usually rests. Are there any debris? Small amounts of litter is normal. Clean as needed.
Inside the waste opening there are two clear “Lenses” (left and right side). Ensure there are no debris on the Lenses. Sometimes litter can fall/splash onto them.
** To clean the lenses, we recommend wiping them off with a soft damp cloth and/or glass cleaner. Do not directly spray the Base or DFI Lenses. **
Replace the Globe and Bonnet. Reset the black key in the back of the unit into the pocket.
Plug the unit back in. If you turned the power off, you will need to power it on and press “cycle”. Once the cleaning cycle is complete, the unit should be at the Home position with a Solid Blue LED on.
Further Troubleshooting:
If the unit continues blinking blue, remove the waste drawer and press cycle.
Press reset 2x to abort the cycle and return the unit to home (it will level the litter).
If the unit goes to solid blue with the waste drawer removed, ensure there is nothing in the drawer blocking the lenses.
If the drawer is clear, your base needs to be repaired ‐ let us know that you tried the full troubleshooting without results.
Please provide us with the serial number from the base of your unit (back inside wall, behind the waste drawer, on a silver sticker): SN#
I searched everywhere to finally discover that the DFI litter sensor was blown.
As we take off the Bonnet with the Litter Robot turned on, we blow (burn) the DFI sensor. There is no other way, but replace it.
You can buy a replacement kit with RobotShop. robotshop.com/en/litter-robot-iii-open-air-dfi-hardware.html
And follow the steps above. youtube.com/watch?v=zD3dsJsVVsc
Best regards,
Noe.
Morning- because of a very large clump of litter had become stuck in the globe I partly dismantled it and I’m sure the magents have been replaced incorrectly as now the lights flash sequentially. Can you help please.
I was having some of these issues consistently and I switched back to using the litter robot bags and I haven’t had a single problem since. Not sure if that helps?
