Brand:Kitchen-aid Model Number:KUIS15NRTB3 Main Symptom:Too much ice What happens & when:
I am stumped. I have a Kitchen-Aid KUIS15NRTB3 That won’t stop making ice. I’ve replaced the Bin thermister, Even though it Ohm’d in spec. I’ve replaced the board and lastly, I replaced the evaporator sensor. It’s intermittent, meaning it may go a week and produce normal ice and then one day it’ll overflow. The diagnostic test on step four shows the water reservoir as being empty, flashing red light, but it’s full. That’s the only diagnostic test that it fails. Could that water level sensor cause this to continue to produce ice?
Hello, I own one of these ice machines and they are great when they work, but a pain when they don’t. You have covered the two areas of a bin overflow problem. The bin thermistor and the control board. The evaporator thermistor simply measures the thickness of the ice and tells the board when to harvest. The water level sensor would be over ridden when the bin thermistor said stop, so that would not cause this issue. i would lean towards replacing the bin thermistor or control board, hopefully they would be under some kind of warranty. If they are not OEM parts, that could be why they failed. I tried that Amazon deal with a circulation pump and it lasted about 8 months, I went back to OEM and haven’t had issues since.
I said the thermistors ( I have two, old one and new aftermarket one ) both ohm correctly. After re-examining them submerged in the full ice bin for at least 15 minutes, they both will read 27.2k to 27.4k ohms. Spec sheet shows “cut-out” at 35 degrees or 29.8k ohms. Neither of these will get to that spec. Are they both bad?
Try this: at room temperature, they should read above 29.8 ohms; the higher the temperature, the higher the ohms. At 27k, they are reading cold enough, right? If that is correct, the bin thermistors are good; that leaves the control board as being defective.