lg refrigerator temperature sensor forum

But what else could it be. With the rails out of the way, you can take out the freezer’s back panel. The sensor resistance should be 16 ohms ±5% at 32℉. I am very handy I think.

I use an infrared temperature sensing gun for this. You must log in or register to reply here. To learn more about your refrigerator, or to order parts, click here.

Now that the refrigerator is reassembled, plug it back in and enjoy your properly functioning appliance. Once the sensor is in place, secure it with zip ties at the top, middle and bottom. Once you are finished with all four rails, slide the bottom rail out of the freezer and reattach the connector rod. Make sure your meter is … Privacy Policy - Conditions of Use - Infringement Policy, Monday – Friday: 8:00 – 5:00 Now reinstall the small rectangular access cover. I have an LG French door LFXS32766S and the ice maker does not work. Take the screws out with a Phillips screwdriver. The valve is filling the ice maker with water and dispensing water so the solenoid valve seems to be working. On LG refrigerators, the sensor should have a resistance 16 K-ohms ±5% at 32℉. If it does, you can put the screws in that holds the door to the rails.

– Measure the sensor resistance. 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.

Note the resistance. Take out the small access cover and set it aside. It is 24 hours after installation of new part. Once you have the first side off, simply pull the other side out of the opposite gear wheel. Is there anything else other than the control board, the solenoid valve and the ice maker for me to look at. For a better experience, please enable JavaScript in your browser before proceeding. You have finally gained access to the defrost sensor, which is located near the top right side of the evaporator. Any instructions on hot to replace it. You are saying the problem then is the control board. After the screws are removed, pull the rail off the freezer wall.

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.

Nothing else to try before spending another $250?

To disconnect the rod, release the locking tab situated between the gear wheel and the mounting plate. Before starting any type of repair, unplug your appliance. When the defrost sensor trips, it shut off power to the defrost heater.

Insert the putty knife into the small gap in between the cover and rear panel to disengage the locking tabs keeping them connected. The thermistor monitors the refrigerator temperature and sends the temperature reading to the control board. 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. LG Refrigerator LFX25991ST/05 - overfilling ice maker.

It is important to be extra careful while taking the sensor out. If the start capacitor is defective, replace it. Using a Phillips screwdriver, take out the screws from the upper rail, first. To determine if the start capacitor is defective, test it with a multimeter. The idea behind these newfangled sensors is that their resistance increases as temperature decreases. 2001-Oct. 2005. JavaScript is disabled. 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.

That’s why 32℉ is a nice test temperature to use because it’s easy and reliable to produce with ice water. Hi, I have the exact same problem. 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.

Then carefully take the defrost sensor out of the freezer compartment. Make sure to trim the zip ties after you have tightened them. Ice maker seems to work fine when pressing test button , but does not produce ice. Thermistor.

Learn appliance repair online from experts at the Master Samurai Tech Academy! Fixitnow.com Samurai Appliance Repair Man, The wisdom of the Samurai brings peace to the wild beasts…. 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.

To remove the rear panel, reach into the opening you created and find the locking tab connecting the back panel to the freezer compartment. 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 … I use an infrared temperature sensing gun for this. Make sure your meter is zero’d out and calibrated. I don't have a service manual for my refrigerator. – Measure the sensor resistance. Yes, possibly the control board, but its best to confirm that before you buy it. To test the sensor: – Measure the temperature of the sensor or the space the sensor is in.

Replace the board?

Finally, you can put the freezer door back on.

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. When those two sections are free, you can disconnect the wire harness from the back wall of the freezer. Now remove the door assembly from the freezer rails. With the racks out of the way, it is time to remove the rails. With the back angled up, pull the front end of the bin out of the freezer.

This site uses Akismet to reduce spam. They’re used in lots of the recent brands to sense temperature. Learn how your comment data is processed.

On LG refrigerators, the sensor should have a resistance 16 K-ohms ±5% at 32℉. These sensors are also called thermistors. 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. LG LMXS30776S Ice Maker not filling with water when door is closed. The old way was with a mechanical thermometer with a capillary tube.

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.

After you have secured them with the screws you took out earlier, you can move on to the top two rails.

Angle the front of the basket up before lifting the entire assembly out of the freezer.

I don't notice anything obviously wrong or burnt with the current control board.

Depress the two tabs on the front of the basket to release it from the rails. Paradise Appliance July 20, 2018 Refrigerator Repair Leave a Comment.

I followed the process you outlined and waiting over 72 hours and still wont cycle. 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.

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. FWIW, I got Sears involved, and they recommended replacing the electronic control board (Part #: Sears Appliance Tech.

2. Now move on to the bottom rails.

Push the rails back into the compartment. It’s time to begin reassembling your freezer compartment. You are using an out of date browser.

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