Electrolux Ice Maker Error Code E9

The E9 code means that Thermistor 4 has been detected as open or shorted, indicating the temperature sensor is not providing a valid signal to the control board. The board cannot properly regulate the ice-making cycle without accurate thermal data from this sensor. You can confirm the fault by accessing the thermistor status menu: if the error repeats, the sensor is defective. If a temperature value is displayed, the thermistor itself may not be the problem.

A reset may temporarily clear the E9 code, but it will return if the underlying thermistor fault is still present. Because the control board continuously monitors the thermistor signal during operation, any persistent open or shorted condition will trigger the error again. The diagnostic status check is the proper way to determine whether the thermistor needs replacement before assuming a reset has resolved the issue.

If only the thermistor needs replacement, parts typically cost in the range of $15 to $50 depending on the specific model. If professional labor is involved, the total repair cost including diagnostics and installation generally falls in the range of $100 to $250. Costs can be higher if the wiring harness or control board also requires attention.

Start by accessing the thermistor status check under View Thermistor status options 19, 20, or 21. If the error repeats during this test, replace Thermistor 4. Before replacing the sensor, also inspect the wiring harness and connector terminals for damage or corrosion, since a wiring fault can produce the same symptoms as a failed thermistor.

Operating the ice maker with an active E9 fault is not recommended. Thermistor 4 provides temperature data that the control board relies on to manage the freezing and harvest cycle correctly. Without accurate sensor input, the machine may not produce ice properly or could operate outside of intended temperature parameters. It is best to diagnose and repair the fault before continuing regular use.