LG Washer Error Code E-28

E-28 on an LG washer indicates a temperature sensor short error. The control board has detected that the resistance across both terminals of the temperature sensor has dropped to an abnormally low level, consistent with a short circuit. This prevents the washer from accurately reading water temperature, so it halts operation and displays the fault code.

It is not recommended to continue running the washer with an active E-28 fault. Without accurate temperature sensing, the machine cannot properly control water temperature, which can lead to poor wash results or potential overheating depending on the cycle. Address the sensor issue before resuming normal use.

If the temperature sensor itself is the cause, replacement parts typically range from roughly 15 to 50 dollars depending on the model. Professional labor to diagnose and replace the sensor can add 80 to 150 dollars or more to the total cost. If the fault involves wiring repairs or a control board replacement, costs will be higher.

A knowledgeable DIYer can diagnose this error by using a multimeter to check resistance across the temperature sensor terminals. If the sensor tests shorted, replacing it is a relatively straightforward part swap. However, if the short is traced to the wiring harness or control board, the repair becomes more complex and may benefit from professional service.

A power reset may temporarily clear the displayed code, but if the underlying short in the temperature sensor circuit still exists, the error will return once the washer attempts to read the sensor during a cycle. A reset should only be used after the root cause has been identified and corrected.