KitchenAid Ice Maker Error Code LED flashes 2 times (Clean mode)

This code means the control board could not detect the bin thermistor when it ran its diagnostic check at the start of the Clean cycle. The bin thermistor is a temperature sensor in the ice bin area. The machine stops the cycle rather than run it without valid sensor data. Check the thermistor connector first, as a loose plug is the most common cause.

The ice maker will not complete the Clean cycle while this error is active, because the board halts the process when it cannot read the bin thermistor. Normal ice production may still operate depending on the model, but running the machine without a functioning thermistor means the control board is missing temperature data it relies on for accurate operation. It is best to resolve the error before continuing regular use.

Unplug the ice maker, disconnect the bin thermistor from the wiring harness, and place your multimeter probes on the thermistor terminals. At room temperature (around 70 degrees F), most NTC thermistors used in KitchenAid ice makers read approximately 10,000 ohms, but confirm the exact value in your model's service manual. A reading of zero or infinite resistance confirms a failed thermistor that needs replacement. If resistance is within spec, trace the harness back to the control board connector and check for continuity through each wire.

Start by unplugging the machine and locating the bin thermistor and its wiring harness. Inspect the connector for looseness, corrosion, or damage, and reseat it firmly. Then use a multimeter to test the thermistor resistance at room temperature, which should read within the range specified in your service manual. If the thermistor is out of range, replace it. If it tests correctly but the error persists, inspect the harness for broken wires before suspecting the control board.

If the fix is simply reseating a disconnected connector, there is no parts cost. A replacement bin thermistor typically costs between $15 and $40 depending on your model. A new wiring harness can range from $20 to $60. If the control board turns out to be the cause, board replacement can run $100 to $250 or more in parts. DIY repair is reasonable for connector and thermistor work; control board replacement may warrant a professional technician if you are not comfortable with appliance electronics.