LG Washer Error Code PRESSURE SENSOR

The PRESSURE SENSOR error on an LG washer means the pressure sensing circuit is producing a continuous signal, indicating a fault in the water level detection system. This is caused by a failed reed switch, a defective ball pressure sensor, a misplaced magnet in the LID-B assembly, or a non-functional water pressure switch. The washer displays this code because the control board cannot receive a normal, expected signal from the pressure sensing components. Connector contact issues at these components are also a frequent contributing factor.

It is not recommended to continue using the washer while this error is active. The pressure sensing system is responsible for monitoring water levels inside the drum, and a continuous faulty signal means the washer cannot reliably detect how much water is present. Running cycles without accurate water level feedback can lead to overfilling or other operational problems.

A reset may temporarily clear the error code from the display, but it will not resolve the underlying hardware fault. If the reed switch, ball pressure sensor, connector contacts, or LID-B magnet are defective, the continuous signal will return and the error will reappear. A proper repair requires identifying and correcting the specific failed component before the code will stay cleared.

Some aspects of this repair are DIY-friendly, such as inspecting and reseating loose or corroded connector contacts at the reed switch and pressure sensor. However, replacing a reed switch, ball pressure sensor, or the LID-B assembly requires sourcing the correct parts and basic disassembly of the machine. If you are not comfortable working around electrical connectors and internal components, having a qualified technician perform the repair is the safer option.

Repair costs vary depending on the failed component. A reed switch or ball pressure sensor part alone typically costs in the range of $10 to $40, while the LID-B assembly can range from $30 to $80 or more depending on the model. If a technician is needed for diagnosis and labor, total repair costs including parts generally fall between $80 and $200, depending on your location and the extent of the repair.