lg refrigerator temperature sensor forum
Now remove the door assembly from the freezer rails. It is important to be extra careful while taking the sensor out. Now move on to the bottom rails. These sensors are also called thermistors. Push the rails back into the freezer, and pull the upper basket out. Saturday:  8:00 - 1:00, During the defrost cycle in a LG refrigerator model. – Place the sensor in a glass of ice water. Any instructions on hot to replace it. Why is Your Dishwasher Making That Sound? Then it has to be the control board, go ahead and order it. Make sure to trim the zip ties after you have tightened them. Using a Phillips screwdriver, take out the screws from the upper rail, first. You are saying the problem then is the control board. With the racks out of the way, it is time to remove the rails. Always wear work gloves and safety goggles to protect your hands and eyes from injury. Yes, possibly the control board, but its best to confirm that before you buy it. If your newly installed defrost sensor did not correct your refrigerator’s problem, please contact us today to schedule an appoint with one of our highly qualified appliance repair technicians. Now you can pull the rear panel out of the freezer. On LG refrigerators, the sensor should have a resistance 16 K-ohms ±5% at 32℉. – Measure the sensor resistance. Is there anything else other than the control board, the solenoid valve and the ice maker for me to look at. With the rails out of the way, you can take out the freezer’s back panel. Insert the putty knife into the small gap in between the cover and rear panel to disengage the locking tabs keeping them connected. To remove the rear panel, reach into the opening you created and find the locking tab connecting the back panel to the freezer compartment. This site uses Akismet to reduce spam. What’s Wrong with Your Dryer Lint System? I have an LG French door LFXS32766S and the ice maker does not work. When all the tabs are disengaged, lower the panel down to the freezer floor, and disconnect the two wire harnesses linking the rear panel to the back wall. Cause 8. Push the rails back into the compartment. I use an infrared temperature sensing gun for this. You are using an out of date browser. I am very handy I think. Nothing else to try before spending another $250? I am ready to buy the control board, unless there is something else to consider that may be causing the ice maker not to cycle. After you have secured them with the screws you took out earlier, you can move on to the top two rails. It is 24 hours after installation of new part. To test the sensor: – Measure the temperature of the sensor or the space the sensor is in. They were going to charge me $650 for labor, so I asked if I … For a better experience, please enable JavaScript in your browser before proceeding. Once you have the first side off, simply pull the other side out of the opposite gear wheel. Once that tab is released you can start pulling off the panel. 4 yrs. You have finally gained access to the defrost sensor, which is located near the top right side of the evaporator. Ahh, those were the days. Let it sit for a minute or two to stabilize. Once all the zip ties are gone, you can take the defrost sensor out by first extracting the thermistor at the bottom and then pulling out the fuse from the top. The idea behind these newfangled sensors is that their resistance increases as temperature decreases. This same procedure can be used to test any sensor in any refrigerator (many ovens use the same kind of temperature sensing technology) as long as you know the specification of the sensor at a given temperature that you can reliably produce. With the back angled up, pull the front end of the bin out of the freezer. Damaging the evaporator coils or fins can lead to a Freon leak, which can only be fixed by a professional. Any further info on this thread? I don't have a service manual for my refrigerator. Learn appliance repair online from experts at the Master Samurai Tech Academy! If you can’t move your appliance to reach the outlet, turn the electricity running to it off at the circuit breaker. LG Refrigerator LFX25991ST/05 - overfilling ice maker. Now run the defrost sensor wire harness behind the copper line and plug it into the freezer’s back wall. I don't notice anything obviously wrong or burnt with the current control board. Now reinstall the small rectangular access cover. Privacy Policy - Conditions of Use - Infringement Policy, Monday – Friday: 8:00 – 5:00 Reattach the bottom two rails on each side of the compartment. The refrigerator defrost sensor-also known as the defrost bi-metal termination thermostat-trips when it detects that the temperature of the evaporator is getting hot enough that it might overheat. 1. If you’re starting from a temperature higher than 32℉, then you should see the sensor resistance increase; if the starting temperature was lower than 32℉, then you should see the sensor resistance decrease. Thermistor. FWIW, I got Sears involved, and they recommended replacing the electronic control board (Part #: EBR73093601), as well as Refrigerator Defrost Sensor Assembly (Part #: ACM73919201), and Freezer Temperature Sensor and Cover (Part #: ACQ73244001) which I did, and voila, problem solved.I have Kenmore Elite model 795.72053110. Plug the two wire harnesses attached to the rear panel into the freezer’s back wall, and reinsert the panel by snapping it into place. Hi, I have the exact same problem. The sensor resistance should be 16 ohms ±5% at 32℉. – Measure the sensor resistance. Push the rails back in, and use a Phillips screwdriver to remove the rails from the freezer walls. Before starting any type of repair, unplug your appliance. As a result, the refrigerator will not cool. Locate the two screws on the side of the rails which hold the assembly and rails together. Note the resistance. Take out the small access cover and set it aside. They’re used in lots of the recent brands to sense temperature. Start by pulling the rails out of the compartment to gain access to the connecting rod in the back that links the left and right rail. If it does, you can put the screws in that holds the door to the rails. FWIW, I got Sears involved, and they recommended replacing the electronic control board (Part #: Sears Appliance Tech. Finally, you can put the freezer door back on. To determine if the start capacitor is defective, test it with a multimeter. LG LMXS30776S Ice Maker not filling with water when door is closed. Once you are finished with all four rails, slide the bottom rail out of the freezer and reattach the connector rod. You’re looking for readings in the k-ohms range. When those two sections are free, you can disconnect the wire harness from the back wall of the freezer. Route the wires along the side of the evaporator. When the defrost sensor trips, it shut off power to the defrost heater. Once both screws are removed, lift up on the door assembly to disengage the four locking tabs, and then pull the door and frame off the rails and place it in a safe area. Lift the back of the bin up to release the locking tabs. Repeat the same process on the other side. Angle the front of the basket up before lifting the entire assembly out of the freezer. Then carefully take the defrost sensor out of the freezer compartment. To disconnect the rod, release the locking tab situated between the gear wheel and the mounting plate. Start the repair by opening the freezer door and removing the lower frozen food bin. The valve is filling the ice maker with water and dispensing water so the solenoid valve seems to be working. Once the sensor is in place, secure it with zip ties at the top, middle and bottom. After the screws are removed, pull the rail off the freezer wall. Learn how your comment data is processed. I have the identical problem. I followed the process you outlined and waiting over 72 hours and still wont cycle. First, with a putty knife, open up the small rectangular access cover located in the upper right hand corner. I just replaced the ice maker with a brand new one. Depress the two tabs on the front of the basket to release it from the rails. Once the door is in place, perform a quick test by pushing the door in and out to ensure it opens and closes properly. That the sensor resistance did change, either up or down depending on whether you’re starting from a temperature higher or lower than 32℉. To learn more about your refrigerator, or to order parts, click here. That’s why 32℉ is a nice test temperature to use because it’s easy and reliable to produce with ice water. Paradise Appliance July 20, 2018 Refrigerator Repair Leave a Comment. To complete your repair, pull out the top rails and insert the freezer basket and then push the basket back into the compartment before reinstalling the bottom bin. You must log in or register to reply here. 2001-Oct. 2005. The thermistor monitors the refrigerator temperature and sends the temperature reading to the control board. Replace the board? It may not display this or other websites correctly. To do, line up the tabs in the door rails to the holes in the freezer rails, and lower the door assembly down until it snaps into place. Make sure your meter is zero’d out and calibrated. JavaScript is disabled. But what else could it be. During the defrost cycle in a LG refrigerator model LFX21976ST, the defrost sensor tells the main control board the temperature inside the freezer.When the sensor is defective, the defrost cycle may stop functioning, which ultimately causes the evaporator in the freezer to ice up and the temperature in the fresh food compartment to increase. Is it a do it yourself project. To test the sensor: – Measure the temperature of the sensor or the space the sensor is in. Now that the refrigerator is reassembled, plug it back in and enjoy your properly functioning appliance. LG LFX25960ST - ICE Maker and Water does not work, LG Model LFX28968ST Ice Maker Not Cycling. On LG refrigerators, the sensor should have a resistance 16 K-ohms ±5% at 32℉. The old way was with a mechanical thermometer with a capillary tube. Take the screws out with a Phillips screwdriver. 2. If the start capacitor is defective, replace it. Before installing the new defrost sensor, guide the upper zip tie through the hole in the evaporator, so you can secure the sensor once you have it connected. Make sure your meter is … To begin the removal process, cut off the three zip ties holding the defrost sensor in place. It’s time to begin reassembling your freezer compartment. Fixitnow.com Samurai Appliance Repair Man, The wisdom of the Samurai brings peace to the wild beasts…. How to Prevent Your Dryer From Ruining Your Clothes, Where to Find the Model Number on Every Appliance in the Whirlpool Family. I use an infrared temperature sensing gun for this. Ice maker seems to work fine when pressing test button , but does not produce ice.


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