Description
The LG BPS-F4X08 (interchangeable with the BPS-F series and part number 6501EA1001C) is an OEM electronic air pressure water level sensor switch. It is engineered exclusively for modern LG Smart Inverter and TurboDrum Fully Automatic Top-Loading Washing Machines. This switch uses an induction coil to measure the volume of water inside the drum via air displacement. As water fills the machine, it forces air up through a small rubber pressure hose into the sensor’s tapered nozzle. The pressure shifts an internal diaphragm, causing the sensor to send a low-voltage frequency signal directly to the main PCB. Once the target level is reached, the computer stops the water intake. Swapping out a faulty BPS-F4X08 sensor quickly resolves common machine issues, including “PE” (Pressure Error) codes, unexpected overfilling, or cycles that stall completely during the filling stage. Key Features & Specifications Model Designation: BPS-F4X08 / BPS-F (Cross-spec: 6501EA1001C) Electrical Interface: 3-Pin linear male terminal block Operational Rating: DC 5V | 10mA (Low-voltage digital control logic) Housing Build: High-durability, moisture-sealed cream polymer chassis Connection Profile: Single integrated top-facing air nozzle designed for standard 1/4″ pressure tube hoses Compatible Machines & Models The BPS-F4X08 pressure switch is engineered specifically for LG’s automatic laundry ecosystem, primarily covering mid-to-high capacity (7kg to 11kg) top-load platforms: LG Smart Inverter Top-Load Series: Natively compatible with the broad LG WT Series (including popular regional platforms like the WT5101HV, WT5101HW, and WT7200CW setups). LG TurboDrum Fully Automatic Washers: Directly fits TurboDrum chassis lines that use an independent 3-pin DC 5V frequency feedback loop. LG WF-T / T Series: Serves as an exact drop-in replacement across various multi-program fuzzy logic top-loaders requiring the BPS-F control configuration. 💡 Fitment Check Tip: LG manufactures water level sensors under two closely related architectures: the BPS-F (like this 4X08 model, which operates on DC 5V) and the BPS-R (which operates on a different frequency matrix). Always look closely at the fine print stamped on your old broken sensor’s casing to verify the BPS-F model prefix before installation.
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