LG Washer Error Code WATER LEVEL SENSOR

This error means the water level pressure sensor is sending a frequency signal outside the acceptable range of 15.0 to 30.0 kHz for 5 or more seconds. The washer uses this sensor to measure how much water is in the tub, and when the signal falls out of range, the machine cannot safely continue the cycle. The most common causes are a blocked air hose, a failed sensor, or a wiring issue.

Pressing the POWER key is the recommended first step and may temporarily clear the error. However, if the underlying cause, such as a faulty sensor or blocked hose, has not been addressed, the error will return during the next fill cycle. A reset alone is not a fix, but it helps confirm whether the fault is intermittent or persistent.

If only the air pressure hose needs cleaning or repositioning, the repair cost is minimal, just your time. Replacing the water level pressure sensor typically costs between $25 and $75 for the part, plus labor if you hire a technician. A professional diagnostic and repair visit generally ranges from $100 to $250 depending on your location and the parts required. If the main control board is at fault, costs can be higher.

Many cases of this error can be resolved without professional help. Start by pressing the POWER key to reset the machine, then inspect the small air hose running from the tub to the pressure sensor for kinks, cracks, or clogs. Cleaning the hose and tub port requires no special tools. Replacing the pressure sensor itself is a moderately straightforward repair for someone comfortable working inside a washer cabinet.

You should not continue using the washer while this error is active. Because the machine cannot accurately measure the water level in the tub, it risks overfilling, which can cause water damage to the surrounding area, or running a cycle without adequate water, which can stress the motor and other components. Stop use until the fault is diagnosed and corrected.