Nov 18, 2019 · I receive really interesting update from Litter-Robot. To reset DFI sensor fault on a Connect Litter Robot please hold Reset button until the blue light blinks quickly. After that, it should come to solid blue light. This should really fix the issue of the DFI. Pressing RESET will cancel the DFI flashing, but if the drawer is full, the sensors will action flashing again. The sensors work by sending beams from one sensor to the other, and if the beam is interrupted, the blue light will flash as the Litter-Robot thinks the drawer needs to be emptied.Hello @Mariagav , Thank you for your reply. According to your order number, the robot is no longer under warranty. If the cleaning of the DFI sensor didn’t fix the issue, we recommend replacing it so you can order a new one from this link: We also recommend replacing the 3 sets of pins so you can order new ones from these links: The following …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 ...My litter robot 3 had been flashing blue light and then yellow light (very fast) after pressing the reset button. I’ve read some troubleshooting to check for the metal pinch bars to be in contact all the time. I’ve tried to clean it and it appears to be in contact as well. ... In this case, the DFI sensor needs to be replaced.1. Turn the base over so it is upside down. 2. Remove the 9 screws connecting the bottom of the base to the top of the base. 1 screw at the back of the unit behind the black cat sensor foot. 3. Gently lift to separate the two halves of the base. The pieces will …Trying to figure out the dfi next. Wish I could get schematics of the robot but even with pinch sensor problem fixed the dfi still fails a lot. I have 10 robots all bought within a month and have had to replace 5 dfi sensors, one of them twice. Plus litter robot sent me a new dfi that had no plug on the end of it so they sent me a new one.Tamia December 5, 2019, 9:41pm 1. Hello, I have a problem with Litter Robot 3. It has blue flashing light at the beginning. I have tried everything (cleaning, reset, check dfi sensor and empty drawer) and when I plug back in it stuck at solid yellow light now (yellow light only). None of buttons is worked even the power button.Find helpful customer reviews and review ratings for Litter-Robot Cats Litter Box III 3 Open Air DFI Hardware at Amazon.com. Read honest and unbiased product reviews from our users. Skip to main content.us. Delivering to Lebanon 66952 Choose location for most accurate options ...I have completely cleaned it inside and out, nothing on the lenses. Robot Litter 3 Troubleshooting steps already taken: Cleaned/on-off /reset Additional information: #676303 (Web #1300025071 Ordered on 3/12/2018 ) Thank you so much in advance for your help! ... This issue indicates a defective DFI sensor and it needs to be replaced.If YES, you are done. Re-position Globe and verify that it completes a clean cycle (in this case adjustment of the cat sensor was not needed). 5. Turn the Base upside down so you are facing the bottom surface. Find the round black adjustment foot and simply turn it Clockwise (2) full complete turns (720 degrees). 6.Then, after a minute, go into the Litter Robot driver, refresh, and see if the Cycles After Drawer Full (a counter in the Litter Robot that counts cycles after DFI IR sensor indicates a full drawer) count goes to 0. It’s supposed to go to 0 along with the cycle count when a reset is done.Compatible with Litter-Robot 3 only. The Litter-Robot 3 Open Air DFI Hardware (v2) is a replacement DFI Hardware for your Litter-Robot 3. It is compatible with Litter-Robot 3 only. What's Included. 1x Litter-Robot 3 Open Air DFI Hardware (v2) Specifications. Compatible with Litter-Robot 3 only.If you get a flashing blue light on your cat box and do not want to spend $80 for a new DFI sensor, then try this fix for $10 in parts. It has ben working fo...May 20, 2020 · Even if their role is the same, there are some differences between the DFI sensors of these two Litter-Robot models. DFI sensor in Litter-Robot 3 and Litter-Robot 3 Connect: This DFI sensor (Product code in RobotShop catalog: Rb-Ltr-72) has two circuit boards. It is based on an IR light. One circuit board is EMITTER and the other one is DETECTOR. LED blue flashing quicker than when the drawer is full and no button of the control panel is working. What should I do? Replace the draw sensors as mentioned in the coments?The issue that you are having would require replacing the DFI sensor and the 3 sets of pins so you can order the following parts from the following links: RobotShop Europe Litter-Robot 3 Open Air DFI Hardware (v2) Litter-Robot 3 Open Air DFI Hardware (v2) Replacement DFI Hardware for your Litter-Robot 3 Compatible with Litter-Robot 3 …The Litter-Robot 3 is equipped with a cat sensor that detects when a cat enters and exits the globe. If a cycle is interrupted or the bonnet is removed, the unit will stop, and the yellow light will flash slowly, about 1x per second. This will also occur if the cat sensor is activated by a cat entering the globe.If it cannot cycle after three attempts, the globe will return to the home position, and the control panel will flash yellow and red or blue and red lights. There are a few things you can do to troubleshoot a jammed Litter-Robot globe: 1. Turn off the unit and unplug it. 2. Remove the bonnet. 3. Remove the globe. 4.That is a new version of DFI sensor and it fits all Litter Robot 3 versions. It can be installed the same way as the old sensors. It should last much longer since the sensor is smaller and completely protected by protective coating. Feel free to ask anything else. strusland December 29, ...The Litter-Robot 3 is equipped with a cat sensor that detects when a cat enters and exits the globe. If a cycle is interrupted or the bonnet is removed, the unit will stop, and the yellow light will flash slowly, about 1x per second. This will also occur if the cat sensor is activated by a cat entering the globe.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 ...Hello @Mariagav , Thank you for your reply. According to your order number, the robot is no longer under warranty. If the cleaning of the DFI sensor didn’t fix the issue, we recommend replacing it so you can order a new one from this link: We also recommend replacing the 3 sets of pins so you can order new ones from these links: The following …Check for obstructions. Check for obstructions that might prevent the cat sensor from functioning. Make sure Litter-Robot is on a firm, level surface. The cat sensor function can be affected if the unit is on carpeting or a litter mat. Check that there are no power cords running underneath the base of the robot that might obstruct movement.The DFI repair is actually quite easy to do. You can purchase a replacement DFI from HERE for $30. You can watch this how to VIDEO on how to replace the DFI. The tools needed for this repair are a #2 Philips screwdriver with at least a 6 inch long shank, and needle nose pliers for convenience.To reset DFI sensor fault on a Connect Litter Robot please hold Reset button until the blue light blinks quickly. After that, it should come to solid blue light. This should really fix the issue of the DFI. 1 Like. Rutoy21 July 13, 2020, 4:53am 22. @pjutras yes it resets it back to solid but every time now after my unit cycles it continues to ...I have a litter robot 3 bought last year. It is now getting stuck in a cycle and is unusable. Symptoms are: A rotation cycle starts and dumps waste Then just before reversing direction the robot stops, the yellow light starts flashing and the globe moves a small amount further in the orginal rotation direction and stops A power off and restart …May 20, 2020 · Even if their role is the same, there are some differences between the DFI sensors of these two Litter-Robot models. DFI sensor in Litter-Robot 3 and Litter-Robot 3 Connect: This DFI sensor (Product code in RobotShop catalog: Rb-Ltr-72) has two circuit boards. It is based on an IR light. One circuit board is EMITTER and the other one is DETECTOR. Upgrade your Litter-Robot 3 to Connect to get all the perks of the app with this do-it-yourself installation kit! With a WiFi-enabled Litter-Robot, you can use our app to: View the waste drawer level. Change settings remotely. Receive status notifications. Monitor your cat's litter box usage. Control multiple Whisker robots.Purchase replacement pinch contact and drawer full indicator (DFI) circuit board assembly for your Litter-Robot 3. ... (DFI) circuit boards for your Litter-Robot 3. Contact Whisker Support if your robot is still under warranty The store will not work correctly in the case when cookies are disabled.Hi @Perpetuus, Yes, it is normal. Litter Robot Connect version has a new type of DFI sensor based on laser so it has only one circuit board. Old DFI sensor was based on IR light so it had two circuit boards. One for emitting and one for receiving IR light. Also, have in mind that the app uses an algorithm to estimate how full the unit is based …Visit our Calibrating OmniSense Laser Sensors guide to learn how to recalibrate your Litter-Robot's DFI sensors. Successful: If your Litter-Robot displays a blue light bar, you've been successful. Unsuccessful: If the calibration fails, the LED display will illuminate a yellow light bar with a red flashing light for five seconds. Then the unit ...If your Litter-Robot 3 is displaying a yellow light flashing quickly, this indicates a cycle has been interrupted by the Anti-Pinch safety feature and you will need to inspect the pinch sensor. Inspect the sensors. The purpose of the pinch sensor is to detect if an object is blocking the waste port during the globe rotation.In this case, the DFI sensor and the 3 sets of pins will need to be replaced so we will send you new ones under the warranty. The following videos will show you how to replace these parts: 1- Shipping address. 2- Phone number. 3- Serial number located on the back of the robot.The Litter-Robot 3 is equipped with infrared emitters and sensors, called DFI sensors, located above the Waste Drawer that check if the drawer is full each time the Globe returns to the Home position. In the event you need to replace your DFI sensors, please follow these instructions. Kit includes: Drawer Full Indicator board assembly (2) retainersVisit our Calibrating OmniSense Laser Sensors guide to learn how to recalibrate your Litter-Robot's DFI sensors. Successful: If your Litter-Robot displays a blue light bar, you've been successful. Unsuccessful: If the calibration fails, the LED display will illuminate a yellow light bar with a red flashing light for five seconds. Then the unit ...Hi! I’ve installed a new DFI sensor and circuit-board for the Litter Robot 3 to upgrade to Litter Robot 3 Connect as the DFI sensor on our LR3 had gone faulty and was no longer reporting an accurate level in the waste drawer. On re-assembling the unit, the orange light is flashing slowly, about once per second. I’ve checked that this is not …I have successfully bypassed the DFI sensor permanently with a under kitchen led tape light section. It has been running for over 1 month 100%. Very easy to do and cost effective that you can do yourself. ... Switched from the Litter Robot bags and am getting 3 more days between emptying.late answered but here is how i fixed mine, but last time i take out the board to change the Full/empty sensor at the bottom Tray and re-assembly it back and my LR3 indicate the “Home Position Fault”. Turned out i didnt put the Hall effect sensor in the correct position. So make you u put it back like the one in the picture.This topic was transferred to internal RobotShop Support. RobotShop Closed February 11, 2021, 1:00pm 10. Hi! We got a Litter Robot 3 about 6 months ago. Yesterday it showed a Home Position Fault (all lights blinking sequentially from red to blue). I can’t seem to find anything online that deals with this precise issue. ….Description Litter-Robot 3 Open Air DFI Hardware (v2) Replacement DFI Hardware for your Litter-Robot 3 Compatible with Litter-Robot 3 only The Litter-Robot 3 Open Air DFI Hardware (v2) is a replacement DFI Hardware for your Litter-Robot 3. It is compatible with Litter-Robot 3 only.View more What's Included 1x Litter-RoThe Litter Robot 3 is an incredibly popular automatic cat litter box which automatically detects when a cat has entered and exited, and rotates the main globe to sift and dump the used litter. ... DFI sensor issue. DFI sensor needs replacing; Replacement Guide (H) YELLOW SOLID: Cycling (In use) Working normally; Without rotation DFI …Upgrade your Litter-Robot 3 to Connect to get all the perks of the app with this do-it-yourself installation kit! With a WiFi-enabled Litter-Robot, you can use our app to: View the waste drawer level. Change settings remotely. Receive status notifications. Monitor your cat's litter box usage. Control multiple Whisker robots.LR3 DFI sensor replaced, still erroring Litter-Robot 3 Inherited a LR3 (not the connect version), gave it a thorough clean and it worked great for 2 weeks. Then got the error …The Litter-Robot 3 is equipped with a cat sensor that detects when a cat enters and exits the globe. If a cycle is interrupted or the bonnet is removed, the unit will stop, and the yellow light will flash slowly, about 1x per second. This will also occur if the cat sensor is activated by a cat entering the globe.That is a new version of DFI sensor and it fits all Litter Robot 3 versions. It can be installed the same way as the old sensors. It should last much longer since the sensor is smaller and completely protected by protective coating. Feel free to ask anything else. strusland December 29, ...The unit will cycle again 15 seconds after your cat has left the globe or 5 seconds after the bonnet is replaced. If your Litter-Robot is not detecting your cat or not cycling, complete the troubleshooting steps in our Litter-Robot 3: Cat not detected guide. If your Litter-Robot is slowly flashing yellow or stuck upside down due to the cat ...If it cannot cycle after three attempts, the globe will return to the home position, and the control panel will flash yellow and red or blue and red lights. There are a few things you can do to troubleshoot a jammed Litter-Robot globe: 1. Turn off the unit and unplug it. 2. Remove the bonnet. 3. Remove the globe. 4.Hi all, I’ve been trying to troubleshoot my litter robot 3 for a while and the agent is always offline on the app so I can’t get any help on fixing it. My red light for cat timing does not come on and it will not cycle unless I press the button. I replaced the DFI sensors a few month back but I don’t think that’s the problem.The issue that you are having would require replacing the DFI sensor and the 3 sets of pins so you can order the following parts from the following links: RobotShop Europe Litter-Robot 3 Open Air DFI Hardware (v2) Litter-Robot 3 Open Air DFI Hardware (v2) Replacement DFI Hardware for your Litter-Robot 3 Compatible with Litter-Robot 3 ...Pressing RESET will cancel the DFI flashing, but if the drawer is full, the sensors will action flashing again. The sensors work by sending beams from one sensor to the other, and if the beam is interrupted, the blue light will flash as the Litter-Robot thinks the drawer needs to be emptied.Litter-Robot 3: Reset Button. The Reset button will reset your Litter-Robot's Cat Sensor. You can think of the Cat Sensor as the scale and the Reset button as a way to zero the scale. IMPORTANT: Any time you do anything that affects the weight or placement of the unit, including adding or removing litter, emptying the Waste Drawer, or moving or ...Also I'd like to mention I have the original litter robot 3 that didn't come with connect. But I did install that a year later. I had issues when I first got mine and I thought it was the dfi sensor but just ended up I had to take out the "key" that's in the back and I think there was a cover that was unnecessary too on the inside.LR3 DFI sensor needing replacement? Litter-Robot 3 I'm getting the slow blue alternating with rapid yellow when the reset button is pushed. I've permanently bypassed the pinch …Hello @Mariagav , Thank you for your reply. According to your order number, the robot is no longer under warranty. If the cleaning of the DFI sensor didn’t fix the issue, we recommend replacing it so you can order a new one from this link: We also recommend replacing the 3 sets of pins so you can order new ones from these links: The following …Discover solutions for Litter-Robot 3's blue light flashing drawer full issue. Visit our support page now for troubleshooting tips and quick fixes. The store will not work correctly in the case when cookies are disabled. ... Cleaning the DFI Sensors. Let’s take a closer look at the DFI sensors. Debris, such as dust or cat fur, can interfere ...You can try to clean the 2 green circuit boards and the 2 plastic brackets of the DFI sensor using isopropyl alcohol and a Q-Tip to remove any rust or dust from them. If that didn’t help, the DFI sensor will have to be replaced first in order to make the robot functional again. Let us know if there’s anything else we could assist you with.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 ...Trying to figure out the dfi next. Wish I could get schematics of the robot but even with pinch sensor problem fixed the dfi still fails a lot. I have 10 robots all bought within a month and have had to replace 5 dfi sensors, one of them twice. Plus litter robot sent me a new dfi that had no plug on the end of it so they sent me a new one.I’m trying the below based on what some other LRC users have said. Basically to improve/correct the data gathered by your litter robot you have to let it do its cycle once the cat has used it If you get a bin full notification, check the drawer. If it’s not full then press the reset button on the litter robot (not on the app) Repeat steps 1-2 until the bin is …The Litter-Robot 3 is equipped with infrared emitters and sensors, called DFI sensors, located above the Waste Drawer that check if the drawer is full each time the Globe …Note: This problem is EXACTLY the same as this other post I found, which is why I’ve essentially just copied the description from there: Litter Robot Cannot Find Dump Position. Hardware concerned: Litter Robot III Connect. Software concerned: N/A. Troubleshooting steps already taken: unplugging it and plugging it in again; cleaning the …With both options, you will get an additional warranty, just in case! -Base Replacement: This is a $399 replacement and gets you a new Litter-Robot base with a 1-year warranty. If your unit was purchased after Jan 1, 2020, you are eligible for a 50% discount on a replacement base at $199.50.1- Remove the old bag. 2- Wipe the DFI sensor’s circuit boards on each side. 3- Install the new bag. 4- Press the “Reset” button on the robot. 5- Reset the level on the app. (For wi-fi model) Note: Steps 4 and 5 must be done in that order according to the manufacturer’s instructions.Cleaning your Litter-Robot. It's important to deep clean your Litter-Robot every 3-6 months. Over time, small clumps can accumulate within the internal pocket of the globe, which can contribute to weight-related errors. Cleaning or soaking the globe thoroughly every 3-6 months will help prevent any excess weight from accumulating within the globe.unplugging it and plugging it in again. cleaning the unit. slightly opening the pin in the power jack. making sure that it is plugged directly into the wall using its original power adaptor. making sure that the unit is on level ground and not touching anything else.With both options, you will get an additional warranty, just in case! -Base Replacement: This is a $399 replacement and gets you a new Litter-Robot base with a 1-year warranty. If your unit was purchased after Jan 1, 2020, you are eligible for a 50% discount on a replacement base at $199.50.The updated DFI Kit is pictured on the bo om. 8-inch #2 Phillips screwdriver (20.3 cm) Preparation: 1 Press the Power bu on to turn the unit o and unplug it from the wall. …Attempt to manually cycle the unit by pressing the “cycle” button. If the unit cycles properly, move to the next step. Reset the CATS by turning the unit off then on using the power button. During the start-up cycle, push on the unit to see if the CATS activates. If it does, press “reset” to pause the cycle, then press “reset” again ...Hi! I’ve installed a new DFI sensor and circuit-board for the Litter Robot 3 to upgrade to Litter Robot 3 Connect as the DFI sensor on our LR3 had gone faulty and was no longer reporting an accurate level in the waste drawer. On re-assembling the unit, the orange light is flashing slowly, about once per second. I’ve checked that this is not …Hardware concerned: Litter Robot III Connect. Software concerned: N/A. Troubleshooting steps already taken: unplugging it and plugging it in again. cleaning the unit. slightly opening the pin in the power jack. making sure that it is plugged directly into the wall using its original power adaptor.Hi! I’ve installed a new DFI sensor and circuit-board for the Litter Robot 3 to upgrade to Litter Robot 3 Connect as the DFI sensor on our LR3 had gone faulty and was no longer reporting an accurate level in the waste drawer. On re-assembling the unit, the orange light is flashing slowly, about once per second. I’ve checked that this is not …I have successfully bypassed the DFI sensor permanently with a under kitchen led tape light section. It has been running for over 1 month 100%. Very easy to do and cost effective that you can do yourself. ... Switched from the Litter Robot bags and am getting 3 more days between emptying.1. Empty the Drawer. On the Litter-Robot, you have a drawer that collects the cat litter. If it becomes full, the blue light will blink rapidly. But if you throw out the mess, the lights should go off. Before returning the drawer to its compartment, remember to place a new liner into the container.Oct 19, 2022 · How to install a replacement DFI Kit + Pinch Detect Terminals in the Litter-Robot 3. The DFI Circuit Board and brackets may appear different from what is pictured depending on when the unit was ... Trying to figure out the dfi next. Wish I could get schematics of the robot but even with pinch sensor problem fixed the dfi still fails a lot. I have 10 robots all bought within a month and have had to replace 5 dfi sensors, one of them twice. Plus litter robot sent me a new dfi that had no plug on the end of it so they sent me a new one.Litter robot 3 yellow light flashing rapidly . I've followed the troubleshooting steps such as: Removing everything from the base, depressing the pinch sensor 10 times, cleaning the terminals and ... and the recommendation was to spend $30 + shipping on a new DFI assembly. The above-linked post fixed the issue in 30 seconds and ...To reset DFI sensor fault on a Connect Litter Robot please hold Reset button until the blue light blinks quickly. After that, it should come to solid blue light. This should really fix the issue of the DFI. 1 Like. Rutoy21 July 13, 2020, 4:53am 22. @pjutras yes ...Hello, I have a problem with Litter Robot 3. It has blue flashing light at the beginning. I have tried everything (cleaning, reset, check dfi sensor and empty drawer) and when I plug back in it stuck at solid yellow light now (yellow light only). None of buttons is worked even the power button. Any help would be appreciated
We are sorry to hear that you are having trouble with your Litter-Robot. To troubleshoot this issue, please follow the steps below: Thoroughly clean the DFI sensor …. Strange world showtimes near century 18 sampercent27s town
I’m trying the below based on what some other LRC users have said. Basically to improve/correct the data gathered by your litter robot you have to let it do its cycle once the cat has used it If you get a bin full notification, check the drawer. If it’s not full then press the reset button on the litter robot (not on the app) Repeat steps 1-2 until the bin is …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...Hi @Perpetuus, Yes, it is normal. Litter Robot Connect version has a new type of DFI sensor based on laser so it has only one circuit board. Old DFI sensor was based on IR light so it had two circuit boards. One for emitting and one for receiving IR light. Also, have in mind that the app uses an algorithm to estimate how full the unit is based …If your Litter-Robot 3 is displaying a yellow light flashing quickly, this indicates a cycle has been interrupted by the Anti-Pinch safety feature and you will need to inspect the pinch sensor. Inspect the sensors. The purpose of the pinch sensor is to detect if an object is blocking the waste port during the globe rotation.Also I'd like to mention I have the original litter robot 3 that didn't come with connect. But I did install that a year later. I had issues when I first got mine and I thought it was the dfi sensor but just ended up I had to take out the "key" that's in the back and I think there was a cover that was unnecessary too on the inside.Litter Robot 3 infrared Drawer Full Indicator circuit boards and assembly Kit for a blue flashing light issue. ... Purchase replacement infra red Drawer Full Indicator circuit boards and assembly for your Litter-Robot 3. Includes DFI board assembly, ... But it's not,do need a new sensor, I've cleaned it several times.If the cleaning of the DFI sensor didn’t fix the issue, we recommend replacing it so you can order a new one from this link: ... Litter-Robot 3 DFI Kit + Pinch Detect Terminals Installation: Litter-Robot 3 DFI Kit + Pinch Detect Terminals Installation - …Litter Robot 3 not reversing during cycle. My Litter Robot 3 has been having a weird issue for the last two weeks. When it cycles, the globe rotates counter-clockwise until the hall sensor detects the magnet on the globe. It then stops, like it should. Then it's supposed to rotable clockwise to return to its home position, when the hall sensor ...Attempt to manually cycle the unit by pressing the “cycle” button. If the unit cycles properly, move to the next step. Reset the CATS by turning the unit off then on using the power button. During the start-up cycle, push on the unit to see if the CATS activates. If it does, press “reset” to pause the cycle, then press “reset” again ...Find helpful customer reviews and review ratings for Litter-Robot Cats Litter Box III 3 Open Air DFI Hardware at Amazon.com. Read honest and unbiased product reviews from our users. Skip to main content.us. Delivering to Lebanon 66952 Choose location for most accurate options ...0:00 / 2:51 Litter-Robot III Open Air - DFI Fault Flashing Blue Light Cat Evolution 516 subscribers Subscribe Subscribed 287 33K views 2 years ago MELBOURNE This video will show you what the...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 ...My Litter Robot won’t reset. The blue light is constantly flashing. When reset is pressed the yellow light then flashes. It pinch sensor has been cleaned and they are touching. The DFI sensors have been cleaned. Help!!! …LR3 DFI & Pinch Sensor - Preventing Errors? Tips & Tricks. 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 …Litter-Robot 3 is equipped with infrared emitters and sensors located above the waste drawer that check if the drawer is full each time the globe returns to the Home position. ….