Pinch detect fault litter robot 4

I never actually got the poop to stop smearing on the walls after almost two months. I ended up cleaning the entire inside of the globe twice a week. At one point I went through 35 lbs of litter in one week because of the GIANT clumps that were being created. I’ve never seen anything like it in all my years of scooping cat poop.

Pinch detect fault litter robot 4. Yup, the unit where I just replaced the DFI and pinch kit did this about 1 day after replacement and won't even cycle now. I have another unit with the pinch detect fault so I will try the bypass on that unit. These things are such trash.

Okay, that’s what I figured. Usually when rapid yellow appears, so does the flashing blue. You’ll need to get a DFI replacement kit and replace the DFI sensors and the pinch detect terminals. See one of my recent posts. Just went through this, and my LR is outside warranty. I have a link to their troubleshooter listed.

Make sure waste bin is empty -> push reset button -> push cycle button. Unplug from power -> check waste port in globe for clumps / obstructions -> Plug in & power on -> complete two manual cycles. Litter-Robot 4 Solid Red [Cat Detected] Wait for set wait timer to complete after last cat detection (could just be normal cycle) Can hit the reset ...If your unit displays a green and white alternating light bar, this indicates an Anti-Pinch Fault during power up. You will also receive a notification on your phone if you use the Whisker App. First, let’s check inside the Waste Drawer to see if there are any foreign objects that could be activating the sensors. Now, let's run a test cycle.I cleaned the contacts and still had pinch fault. The pinch wiring feeds to the dfi board so I replaced the dfi board and pinch alarm went away. I also had the red,yellow light. It …I cleaned the contacts and still had pinch fault. The pinch wiring feeds to the dfi board so I replaced the dfi board and pinch alarm went away. I also had the red,yellow light. It turned out that I partially pulled out the dfi plug on main board when putting it back together. Okay, that’s what I figured. Usually when rapid yellow appears, so does the flashing blue. You’ll need to get a DFI replacement kit and replace the DFI sensors and the pinch detect terminals. See one of my recent posts. Just went through this, and my LR is outside warranty. I have a link to their troubleshooter listed. Litter-Robot 4 Size. Compared to Litter-Robot 3, the Litter-Robot 4 is a bit smaller measuring 22 x 27 x 29.5 inches. The Litter-Robot 4 offers two designs: one with a step and the other with a handle. The handle-equipped type is best for cats who like to enter the unit directly without utilizing the step.Litter-Robot 4: Green & White Alternating Light Bar (Pinch Detect) Litter-Robot 4: Green with Partial Red Flashing (OmniSense sensors need cleaning) Litter-Robot 4: Hard ResetTake the screws out of the bottom of the base. Unplug the wire from each pinch bar and remove the bars from the plastic slots. Now take some pliers, tin snips, or whatever you have laying around and cut a clean, non-corroded piece of the pinch bar off so you have a small piece of metal. If you're going to bypass both the bonnet and the pinch ...

Inspect the sensors. The purpose of the pinch sensor is to detect if an object is blocking the waste port during the globe rotation. Press the Power button to turn the unit off. Unplug …Litter-Robot 3: Checking the Pinch Detect. Watch on. The Litter-Robot is equipped with an Anti-Pinch safety feature to make the Litter-Robot extra safe for your cat. While cycling, if a potential pinch condition is detected, the globe will stop and reverse direction for 2 seconds. The yellow light will begin flashing quickly, about four times ... There can be a few causes for this, main one being the LR hasn't been cleaned in a while allowing enough litter to accumulate on the top of the base. This results in the globe having to rub against the litter causing excessive drag. Another is the gear box for the drive motor is running dry on lube slowing it down making the motor work harder ... Jan 14, 2024 · After using the Litter-Robot 4 for over six months, I like the improvements compared to the litter Robot 3 vs 4. The Litter-Robot 4 is quieter, lets us know our cat’s weight, and requires less attention for the waste drawer. The sleek and minimalist design of the Litter-Robot 4 is a big plus point, especially when we compare Litter Robot 3 vs 4. Feb 28, 2022 · I have a Litter Robot 3 which I purchased in April 2021. S/N LR3171595. Order #: 1085085. About a week ago the yellow light for the pinch sensor started flashing rapidly. At first I was able to take the unit apart and use a soft brush to clean litter and dust out of the base and this would fix the problem. holmes1r. • 2 mo. ago. Yes, the DFI need to be replaced. Bypassing it difficult at best so its easier to get the replacement. You can get a replacement DFI and pinch contacts from HERE . I highly suggest restoring the pinch contacts to their manufactured configuration. The pinch contacts can be made to be reliable once again by performing ...Jan 13, 2023 · The first step in troubleshooting the pinch detection system is to check the power supply. Make sure that the power cord is securely plugged into the wall outlet and that the power switch is turned on. Additionally, check that the power cable is connected to the litter robot and that the battery is charged. Adjust the Height of the Litter Tray. I had the same thought. Mine crapped out right about the same time as all these other posts started flooding in. On the bright side, I replaced my 3 with the 4, and so far it's a lot nicer. Easier to clean, easier to change the bag, quieter. Let's see how well it holds up.

Litter-Robot is equipped with Anti-Pinch Sensors on both sides of the Waste Drawer Chute to ensure your cat’s safety while in use. These sensors monitor for potential pinch conditions at all times. If your unit displays a green and white alternating light bar, this indicates an Anti-Pinch Fault during power up. To fix pinch detect on the litter robot, try cleaning the sensors and ensuring they are properly aligned. The litter robot is a popular self-cleaning litter box for cat owners. However, like any machinery, it can sometimes experience issues. One common problem is the pinch detect not working properly. This can result in the unit...Litter-Robot by Whisker integrations. Your smart litter box just got even smarter: Connect your Litter-Robot automatic self-cleaning litter box to more than 100 relevant smart home products in just a few clicks using IFTTT. View our recommended applets for Litter-Robot events that will trigger subsequent smart home actions—or create your own!So, whisker devs FIX THE APP or ill hack you and do it myself. Go line by line in your code and use a note book or white board to explain each function in words like: this is what makes the app UI, this is for when the robot sees an error, etc. You will find the faulty code and then you can fix it. Okay? Okay. Thank you.It's my fault for adding too much litter and not resetting the weight sensor. Thanks to OP's comments, I was able to remove some litter, pop the lid, manually rotate the ball, put it back together and the robot finally ran a cycle and is all good now. 2. Share. DeCostaH.

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Jan 13, 2023 · The first step in troubleshooting the pinch detection system is to check the power supply. Make sure that the power cord is securely plugged into the wall outlet and that the power switch is turned on. Additionally, check that the power cable is connected to the litter robot and that the battery is charged. Adjust the Height of the Litter Tray. In this video we will be going over how to clean the Litter-Robot 4. The steps in this video will show you how to clean the litter robot globe. While I use a...Also read: Dealing with Pinch Detect Fault Litter Robot. 4. Eufy RoboVac G30 Hybrid. If you’re looking for a dual vacuum and mop robot cleaner on a budget, the Eufy RoboVac G30 Hybrid is an excellent choice. Priced reasonably lower than similar Ecovacs models and often available at a discount, this hybrid cleaner provides good …The Bearded Tech Guy. In this video we'll be taking a look at 5 different errors the Litter-Robot 4 may run into and how to fix them. This include LED status …

litter robot 4 pinch detect fault Litter-Robot 4 Tonight, my litter robot threw continuous pinch detect fault errors. I took it apart and saw nothing amiss. Any ideas on what to do? I've dusted around the pinch bars and can't find anything blocking them. 2 5 Sort by: Add a Comment LR_Support_01 • 1 yr. ago Look at the top of the base. You will see the waste port opening (where the waste clumps fall through). On the left-hand side, you'll see a plastic bar lined up with the white glider buttons and to the right of the short seal strip Press this area 10 times to open and close the pinch sensors. Look inside the base through the waste drawer opening.Edit2: after watching more videos it looks like there is a pinch sensor :(. But I hope someone can tell me if it has been improved to help stop or slow down corrosion. I have had the litter robot 2 and am using the litter robot 3 for a few years now. But the thing I hate most are the sensors. Specifically the pinch sensor and bonnet sensor.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket …1. geordi2. •. You can completely bypass (and cure) the pinch sensor issue with as little as a paperclip. All you need to do is unplug the two wire connector plugs from the aluminum pinch arms, and use the paperclip bent small enough to act as a joiner between the two connector plugs.I had the same thought. Mine crapped out right about the same time as all these other posts started flooding in. On the bright side, I replaced my 3 with the 4, and so far it's a lot nicer. Easier to clean, easier to change the bag, quieter. Let's see how well it holds up.The filter works very well and in either instance couldn't detect odors at all. It's important to keep an eye on it via the Whisker app. It connects to your robot, offers to nickname the machine (turd burglar), offers to send you notifications every time your kitty goes potty, to let you know of any errors immediately.I would make sure it is seated correctly, and if you want to make extra sure you can remove it and then try a cycle. Always unplug from the back of the unit as opposed to the wall if you want to do a complete reset. Leave it unplugged for 10 mins and then plug it back in. Erinsceales. • 1 yr. ago.Wondering if anyone has managed to fix the persisent pinch detect error? Posting as I am about to oull my hair out. We've had our 3 for 2.5 years and largely has been great. ... I might cry, litter robot might have helped solve our …

I cleaned the contacts and still had pinch fault. The pinch wiring feeds to the dfi board so I replaced the dfi board and pinch alarm went away. I also had the red,yellow light. It …

We accept returns of products within 30 days of the sale date for any reason. Items returned after 30 days may not qualify for a refund, or may incur an extra $25 restocking fee, except for the Whisker Litter-Robot III Open Air and Litter-Robot III Open Air Connect and Litter-Robot 4 which are covered by the 90 Day Customer Satisfaction Guarantee below.Jan 24, 2019 · Came home to my Litter-Robot in the upside down position and the yellow flashing (2 flashes per second) and I cannot get the globe to turn at all to try to reset itself. There is power to the unit because the yellow light is flashing but regardless of which buttons I press or turn power on/off no movement of the unit can be made. I have cleaned and emptied the unit and even reset the spring in ... I finally ordered a completely new pinch detector and DFI kit. I changed it all out, it was working great for about a month. Now these past few days I am back to seeing the pinch detector alerts. I absolutely despise having to open the litter robot and have probably about a good 10x now. I’ve had the litter robot 3 for 3-4 years now.I never actually got the poop to stop smearing on the walls after almost two months. I ended up cleaning the entire inside of the globe twice a week. At one point I went through 35 lbs of litter in one week because of the GIANT clumps that were being created. I’ve never seen anything like it in all my years of scooping cat poop.Litter-Robot is equipped with anti-pinch sensors on both sides of the waste drawer chute to ensure your cat’s safety while in use. These sensors monitor for potential pinch …Litter-Robot 4: Green & White Alternating Light Bar (Pinch Detect) Litter-Robot 4: Green with Partial Red Flashing (OmniSense sensors need cleaning) Litter-Robot 4: Hard ResetJan 14, 2024 · After using the Litter-Robot 4 for over six months, I like the improvements compared to the litter Robot 3 vs 4. The Litter-Robot 4 is quieter, lets us know our cat’s weight, and requires less attention for the waste drawer. The sleek and minimalist design of the Litter-Robot 4 is a big plus point, especially when we compare Litter Robot 3 vs 4. The Bearded Tech Guy. In this video we'll be taking a look at 5 different errors the Litter-Robot 4 may run into and how to fix them. This include LED status …Litter-Robot 4: Green & White Alternating Light Bar (Pinch Detect) Litter-Robot 4: Green with Partial Red Flashing (OmniSense sensors need cleaning) Litter-Robot 4: Hard Reset Litter-Robot 4 is the latest evolution of the highest-rated WiFi-enabled, automatic, self-cleaning litter box for cats. With over 20 years of customer feedback driving product innovation, Litter-Robot 4 features new sensor and litter-sifting technology for enhanced odor control, cat safety, and real-time tracking of waste and litter levels through the …

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Litter-Robot 4 I know this post is going to upset a bunch of people here, but I want to take a moment to share my experience with my litter robot 4. I purchased towards the middle of November as a Christmas gift for myself, I buy myself one big gift for Christmas every year and I have been eye balling the litter robot for quite some time. Jan 27, 2023 · Step 1: Check the Sensor’s Placement. Obviously, the first fix you would want to apply is to check the placement of the sensor. The sensor should be placed in the middle of the entrance, with the lens facing toward the inside of the litter box. If the sensor is not properly placed, it may not be able to detect when a cat enters or exits the box. Litter robot 3 over torque fault out of box. Got our robot today. So far nothing but issues. Ran one proper cycle on Initial startup. Torque fault after that. Followed all the troubleshoot steps on the website. I weighed the litter initially and put in the recommended amount and not over the fill line.Turned out that the DFI board (the two PCBs on either side of the opening) was busted. You can order a new DFI kit for $80 off the litter robot website. I'm not sure how it broke, bit I read somewhere that something can blow if you remove or replace the bonnet while the robot is still plugged in. Please contact our team at 877-250-7729 or ...I hate my litter robot. I have gotten a full replacement after 18 months of mostly good experience with my robot. This new one has been sent to the “shop” where they found nothing wrong with it, it pinches every cycle, always says it’s full, rotates the wrong direction, over torque faults, dump position faults. You name it it has faulted ...My LR3 seems to still be doing the proper cycles and such, but I can't control the robot from the app, and the level isn't updating (in the app) from the percentage it was last at before I stopped getting notifications (even after changing the litter and doing a reset). 2. o-Valar-Morghulis-o. • 6 mo. ago. Few steps: 1: Cut either the black or blue wire. 2: Get a 2k ohm resistor. (I didn't have any so I used a resistor and a potentiometer.) P.s. The litter robot sends 5v to the cat sensor and gets 0,9v back, therefore you need the 2k ohm resistor. 3: Make the pressure point where the cat sensor were placed, to a switch.Jan 24, 2019 · Came home to my Litter-Robot in the upside down position and the yellow flashing (2 flashes per second) and I cannot get the globe to turn at all to try to reset itself. There is power to the unit because the yellow light is flashing but regardless of which buttons I press or turn power on/off no movement of the unit can be made. I have cleaned and emptied the unit and even reset the spring in ... Litter Robot owner here -- Have had two litter robots and I think a recent batch of circuits is faulty. First one had no trouble with DFI for years; second one I bought refurbished and DFI went in 2 months. I replaced the DFI on first one, that lasted only 2 months. If Whisker does not get on top of this, they will lose their audience.The pinch detect circuit is part of the DFI and this is the reason why when the globe is in the dump position the base attempts to change direction, and does for a split second, (this is when the pinch detect becomes active once again) and since the DFI has malfunctioned, the control board thinks a pinch is in progress and reverses the direction of the globe …Currently have had the litter robot 4 for about 3 weeks and can say I am having regrets. Issue I am having is the constant inturruptions with the litter box stopping mid cycle for no reason and staying stuck for hours. I tried the globe reposition, cleaning detection sensors and leveling LR on floor. Non of these worked and it still stops mid ... ….

We accept returns of products within 30 days of the sale date for any reason. Items returned after 30 days may not qualify for a refund, or may incur an extra $25 restocking fee, except for the Whisker Litter-Robot III Open Air and Litter-Robot III Open Air Connect and Litter-Robot 4 which are covered by the 90 Day Customer Satisfaction Guarantee below.Cleaning the sensors. With the globe, bonnet, and drawer removed, lean the unit backward so that you can look into the holes on the bezel to see each sensor. Using a clean, dry cotton swab, carefully clean the surface of each sensor to remove any dust. It is important to note that it will be very difficult to see any dust, specifically on the ...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket …The Litter-Robot four-part system (base, globe, bonnet, and drawer) was constructed with easy upkeep in mind. Whether you’re deep-cleaning or replacing a part, the simple modular design allows you to readily access and service your Litter-Robot. We also offer Litter-Robot repair services even after the WhiskerCare™ Warranty expires—just ...Litter robot has been popular with bigger cats due to the size and the way it’s been designed. I'm pretty happy with the LR3, they are too expensive to just replace with the LR4 for no reason. There are some alternatives that exist, similar to the LR that I never knew about, but not a better price original not much.Turned out that the DFI board (the two PCBs on either side of the opening) was busted. You can order a new DFI kit for $80 off the litter robot website. I'm not sure how it broke, bit I read somewhere that something can blow if you remove or replace the bonnet while the robot is still plugged in. Please contact our team at 877-250-7729 or ...Litter robot has been popular with bigger cats due to the size and the way it’s been designed. I'm pretty happy with the LR3, they are too expensive to just replace with the LR4 for no reason. There are some alternatives that exist, similar to the LR that I never knew about, but not a better price original not much.Oct 25, 2023 · In this article, we will guide you through the process of fixing pinch detect issues on a Litter Robot. Pinch detect is an important feature of the Litter Robot that ensures the safety and proper functioning of the device. However, like any mechanical system, pinch detect may encounter problems over time. There can be a few causes for this, main one being the LR hasn't been cleaned in a while allowing enough litter to accumulate on the top of the base. This results in the globe having to rub against the litter causing excessive drag. Another is the gear box for the drive motor is running dry on lube slowing it down making the motor work harder ... Pinch detect fault litter robot 4, I’ve tried various litters, unscented, cat attract, regular litter box in different shapes, sizes, unclumping litter, pelleted litter, etc. He’ll use a puppy pad until it’s dirty, then the floor. ‍♀️ I thought this was a permanent issue, but I boarded him while we were gone a weekend and he used the box, not the pad, every., Litter-Robot 3 Pinch Contact & DFI Kit. $30. Buy in monthly payments with Affirm on orders over $50. Learn more. If your Litter-Robot 3 is no longer under warranty, you can purchase this replacement pinch contact and DFI kit. Qty. , Preparation. Litter-Robot is equipped with the SafeCat system that uses the cat presence motion sensor to detect motion in the waste drawer. If your unit displays a red ping-pong light bar, this indicates that motion was detected in the waste drawer and the globe will cycle to the Dump position to allow the object to escape. , Litter-Robot is equipped with anti-pinch sensors on both sides of the waste drawer chute to ensure your cat’s safety while in use. These sensors monitor for potential pinch conditions at all times. If your unit displays a green and white alternating light bar, this indicates an anti-pinch fault during power up. , Empty the Litter-Robot waste drawer. Ensure the waste drawer liner is properly installed and tucked into all 4 tabs. Perform a hard reset after emptying the waste drawer: Unplug Litter-Robot for 10 seconds and replug. Thoroughly clean the Drawer Full Indicator (DFI) with a dry cloth or cotton swab. Check for signs of corrosion. , Oct 25, 2022 · In this video we'll be taking a look at 5 different errors the Litter-Robot 4 may run into and how to fix them. This include LED status identification of the... , The Litter Robot 4 Pinch Detect is an automatic, self-cleaning litter box designed to make the lives of pet owners easier. It not only offers convenience and comfort for you‍ and …, Litter-Robot 4 is the latest evolution of the highest-rated WiFi-enabled, automatic, self-cleaning litter box for cats. With over 20 years of customer feedback driving product innovation, Litter-Robot 4 features new sensor and litter-sifting technology for enhanced odor control, cat safety, and real-time tracking of waste and litter levels through the …, I noticed the left side of the litter robot seems to be pressing in a bit. So I took it apart cleaned it and put it all back together. Now all it will do is flash the blue light! The drawer is empty, the bag is not in the way, and it will not cycle at all, even when unplugged and plugged back in. Troubleshooting said to wipe the sensor with a ..., With most litters, the clean litter should be below the suggested line. This fixes the issue a lot of the time, even when it doesn’t look to full -make sure the bot is not touching the wall or anything else -make sure the bonnet is on correctly and seems tightly snapped -make sure the bag is hooked on the 4 notches, below the tray., Our self-service troubleshooters are the fastest way to solve issues with your robot. Troubleshooter. Videos. Getting Started. Manuals. Installation Guides. Support Articles. FAQ., A week ago, the pinch detector went off, and since then, the device stopped working. Did a full cleaning, triple checked the pinch detector was clear with no litter and verified that the circuit was complete with a multimeter - something else was wrong., Jan 24, 2018 · The pinch detectors are designed as a fail safe should there be something caught in the chute area of the Litter-Robot, such as a very adventurous cat that leaps in when rotating, and manages to get into a compromising position. , Yup, the unit where I just replaced the DFI and pinch kit did this about 1 day after replacement and won't even cycle now. I have another unit with the pinch detect fault so I will try the bypass on that unit. These things are such trash., The Litter-Robot is equipped with Anti-Pinch Sensors on both sides of the Waste Drawer Chute to ensure your cat’s safety while in use. These sensors monitor ..., Our self-service troubleshooters are the fastest way to solve issues with your robot. Troubleshooter. Videos. Getting Started. Manuals. Installation Guides. Support Articles. FAQ., We've had a litter robot 3 for about 6 4 months. A few days ago it got stuck in the middle of a cycle. I didn't see it when it stopped, but it looks like it completed the first half to dump the waste then got stuck before it started rolling back to the home position. The yellow light is on solid. The buttons are completely unresponsive., Community for all things Litter-Robot. Post your experiences, tips, tricks, and hacks., Jan 31, 2023 · If the Pinch Detect feature on your Litter-Robot is not working properly, there are a few things you can try to fix it. First, make sure that the Sensor Wheel is clean and free of any debris. Next, check the Sensor Housing to see if it is blocked or obstructed in any way. If both of these are clear, then try resetting the Pinch Detect feature ... , I'll do you one better; I'll tell you how to bypass the bonnet AND the pinch sensor without even having to make a trip to the store for alligator clips. Take the screws out of the …, Remove the globe and put the bonnet back on to see if the motor will go the whole way. If so, it’s likely an issue with too much weight in the globe. If you haven’t made any changes with the type or amount of litter than it could be the gears not catching properly or the motor is just going bad., Feb 28, 2022 · I have a Litter Robot 3 which I purchased in April 2021. S/N LR3171595. Order #: 1085085. About a week ago the yellow light for the pinch sensor started flashing rapidly. At first I was able to take the unit apart and use a soft brush to clean litter and dust out of the base and this would fix the problem. , Our family has had our LR3 for two years and are mostly in love with it. However, we've had another set of DFI & Pinch Sensors go bad this past week (our 2nd in the last year), which has me concerned about long-term viability of the unit. To LitterRobot's credit, their CS team has been great about identifying the issue and sending replacement ..., Stops one of the most annoying problem when the robot gets stuck and does not unstuck by itself.In my personal opinion, this sensor is an overkill for the pr..., I cleaned the contacts and still had pinch fault. The pinch wiring feeds to the dfi board so I replaced the dfi board and pinch alarm went away. I also had the red,yellow light. It turned out that I partially pulled out the dfi plug on main board when putting it back together. , Turned out that the DFI board (the two PCBs on either side of the opening) was busted. You can order a new DFI kit for $80 off the litter robot website. I'm not sure how it broke, bit I read somewhere that something can blow if you remove or replace the bonnet while the robot is still plugged in. Please contact our team at 877-250-7729 or ..., Litter-Robot 4: Green & White Alternating Light Bar (Pinch Detect) Litter-Robot 4: Green with Partial Red Flashing (OmniSense sensors need cleaning) Litter-Robot 4: Hard Reset, BEFORE DOING THIS BYPASS HACK:Be sure to do the usual fixes first.. Clean plastic pinch detector part that flexes first (the cracks), then clean both sides o... , Litter robot has been popular with bigger cats due to the size and the way it’s been designed. I'm pretty happy with the LR3, they are too expensive to just replace with the LR4 for no reason. There are some alternatives that exist, similar to the LR that I never knew about, but not a better price original not much., Jul 22, 2020 · Litter-Robot 3 flashing red light. A solid red light on your Litter-Robot 3 control panel means that the cat sensor was activated by your cat entering the globe while the unit was ready for use. The unit is counting down to a clean cycle, depending on your set wait time (3, 7, or 15 minutes). A flashing red light indicates that the cat sensor ... , Oct 11, 2023 · Also read: Beyond Litter Disposal: Dealing with Pinch Detect Fault Litter Robot. Yellow Ping-Pong: Meaning: A light pattern resembling a moving ping-pong ball signifies the activation of the pinch detector for your cat’s safety. Solution: Look into the Waste Drawer for any foreign objects possibly triggering the sensors. Run a test cycle ... , If you have a Litter-Robot III Open Air 3 and it's stopped working with yellow blinking / flashing light and/or the globe does not rotate in normal ... With this type of yellow light error, ... this blinking yellow light as shown in our video is because of the anti-pinch safety feature malfunctioned or became defective. Basically, ..., Safety Features of the Litter Robot: Pinch Detect; Common Issues with Pinch Detect on a Litter Robot. Sensor Malfunctions and Their Symptoms; Mechanical …