KitchenAid Washer Error Code F05

The F05 code indicates that the water temperature sensor (NTC thermistor) is reading a value outside the expected range during the water heating step of the wash cycle. The control board monitors this sensor to ensure water is being heated correctly, and it stops the cycle when the reading is implausible. The fault points to a problem with the sensor itself, its wiring connections, or in less common cases, the control board.

No, you should not continue running the washer while the F05 fault is active. The control board has stopped the cycle specifically because it cannot confirm that water temperature is within a safe and correct range. Running the machine without a functioning temperature sensor could result in improper washing conditions or, if there is also a heating issue, a risk of overheating.

Unplugging the washer for a few minutes and restoring power may temporarily clear the F05 code, but if the underlying cause has not been addressed, the error will return when the washer attempts to heat water again. A reset is useful for confirming whether the fault is intermittent, such as from a loose connection, but it is not a permanent fix. Proper diagnosis of the sensor and wiring is necessary to resolve the fault reliably.

Many homeowners and DIYers can address this fault by first unplugging the washer and inspecting the wiring connections at the NTC sensor for looseness or corrosion. If connections look good, testing the sensor with a multimeter can confirm whether it has failed and needs replacement. Replacing the NTC thermistor is a relatively accessible repair, though work involving the control board is better suited to a qualified technician.

If only the NTC temperature sensor needs replacement, parts typically cost in the range of $15 to $50 depending on the model. If a professional technician is needed, total repair costs including labor generally fall between $100 and $250. Control board replacement, if required, can push costs higher, often in the $200 to $450 range including labor.