The yellow light on the unit is constantly on and my robot has stopped working.
I did have the App but the App has deleted all my settings and will not reconnect.
I have followed the advice for a hard reset, have taken it apart several times, cleaned sensors etc and it still doesn’t work. If I disconnect the unit from the power and turn back on the only light which comes on is the solid yellow cycling light.
The on, cycle and reset button on my base are totally unresponsive and it no longer lights up blue when it’s dark. The yellow light is solid.
We are sorry to hear that you are having trouble with your Litter-Robot.
Please provide us with your order number or a copy of the invoice.
You need to clean the 2 green circuit boards of the DFI sensor with isopropyl alcohol and a Q-Tip to remove any rust or dust from them.
Then clean the Anti-Pinch pins with WD-40 and sandpaper.
Here’s a video to help you locate these parts:
If this didn’t fix the issue, we will need to do one more simple test.
Open the top part of the base and disconnect the DFI sensor’s connector from the circuit board then check if the solid yellow light would disappear and a blinking blue light would come on.
When I disconnect the DFI sensor’s connector from the circuit board then turn the power on, the blinking blue light comes on. What does this mean? Do I need a new motor or other part? (My LR is out of warranty.)
It is yellow forever. After I have turned it on with the ‘on’ button, I see the solid yellow botton and the none of the buttons are responsive. To power down the LR3, I have to unplug the power cable.
The set screw of the gear is tight and does not move. Is it possible that I need a new motor?
My old DFI sensor was wired liked your photo, but on my replacement DFI sensor the colours are in a different order. Is this normal?
In Oct 2022, my LR3 was serviced here in the Netherlands:
Technician’s comment: DFI defective, 3 sets of pins damaged/rusty
Parts replaced: DFI hardware, anti-pinch pins, base contact pins, bonnet terminal pins
As mentioned above, I cannot easily connect the replacement sensor in the way illustrated in your photo, because the wires are inserted in a different order.
My old sensor (itself a replacement part included in the LR’s 2022 professional service) is wired like your photo. On the new sensor, the colours are ordered (clockwise): red, blue, black, yellow.
