--- title: "Refrigerator error code IS" description: "LG refrigerator error code IS: The ice maker only harvests when its own sensor says the tray is cold enough." url: "https://lgmiami.support/error-codes/refrigerator-ice-maker-sensor/" date_modified: "2026-09-05" Appliance type: "Ice makers, Refrigerators" --- # Refrigerator error code IS ### What IS means on this make The ice maker only harvests when its own sensor says the tray is cold enough. Lose that reading and the cycle stalls: LG’s own description is that the ice maker may stop because cubes are no longer being dispensed into the bucket. From the kitchen it looks like a machine that has decided not to make ice, with nothing else wrong anywhere. It is a small part in an awkward place, which is why it is a visit rather than an afternoon. ### The other ways LG prints this one IS · Er IS LG publishes a condition and then every string that can stand for it, and which one your machine shows depends on the panel it was built with — OE, E03 and E21 are one condition on a washer, and Er dS, F dS and r dS are one sensor on different evaporators. They are one page here, so whichever of them you searched for, this is the right page. ### Where this appears, and why not to clear it On the appliance’s own display. LG reports errors two ways: machines with a digital display show a code, and the laundry machines without one blink their indicator lights instead. Both are published by the maker and both are on this site. Photograph what the panel shows before cutting the power. On a refrigerator you can also force the last code back onto the display by holding Freezer Temperature and Express Frz together for three seconds — LG documents that, and it is the one thing that makes a first visit more useful. A code that has been reset is information a technician no longer has. ### What to do about it - Confirm the ice maker is actually switched on — the arm or the button, depending on the model. - Check there is water arriving by running the dispenser. Ice and water share the line. - Cycle the power for five minutes and give it twenty-four hours before judging. - If there is still no ice and the code is back, book it. ### Where this goes next The job this usually becomes is [diagnostic visit](/services/diagnostic-visit/), and that page carries a starting figure and the reasons that move it. If it turns out to be nothing — and on this make a real share of these are modes, reminders and settings rather than problems — the visit ends there and you pay the diagnostic and nothing else, or call [(305) 419-0291](tel:+13054190291) and describe what the panel is doing before booking anything. Ice maker temperature sensor What this one means What IS means on this make The ice maker only harvests when its own sensor says the tray is cold enough. Lose that reading and the cycle stalls: LG’s own description is that the ice maker may stop because cubes are no longer being dispensed into the bucket. From the kitchen it looks like a machine that has decided not to make ice, with nothing else wrong anywhere. It is a small part in an awkward place, which is why it is a visit rather than an afternoon. The other ways LG prints this one IS · Er IS LG publishes a condition and then every string that can stand for it, and which one your machine shows depends on the panel it was built with — OE, E03 and E21 are one condition on a washer, and Er dS, F dS and r dS are one sensor on different evaporators. They are one page here, so whichever of them you searched for, this is the right page. Where this appears, and why not to clear it On the appliance’s own display. LG reports errors two ways: machines with a digital display show a code, and the laundry machines without one blink their indicator lights instead. Both are published by the maker and both are on this site. Photograph what the panel shows before cutting the power. On a refrigerator you can also force the last code back onto the display by holding Freezer Temperature and Express Frz together for three seconds — LG documents that, and it is the one thing that makes a first visit more useful. A code that has been reset is information a technician no longer has. What to do about it Confirm the ice maker is actually switched on — the arm or the button, depending on the model. Check there is water arriving by running the dispenser. Ice and water share the line. Cycle the power for five minutes and give it twenty-four hours before judging. If there is still no ice and the code is back, book it. Where this goes next The job this usually becomes is diagnostic visit, and that page carries a starting figure and the reasons that move it. If it turns out to be nothing — and on this make a real share of these are modes, reminders and settings rather than problems — the visit ends there and you pay the diagnostic and nothing else, or call [(305) 419-0291](tel:+13054190291) and describe what the panel is doing before booking anything. --- **[Read full article: Refrigerator error code IS](https://lgmiami.support/error-codes/refrigerator-ice-maker-sensor/)**