Washer Water Level Pressure Switch Assembly (LG OEM)

Description

Genuine LG OEM Washer Water Level Pressure Switch Assembly – Part 6501EA1001R

Includes switch and air dome tube. Monitors/regulates water level throughout fill, wash, rinse cycles. Fixes PE error code.

Part Number: 6501EA1001R

Replaces: AP5204365, 2651052, AH3529177, EA3529177, PS3529177

Always verify compatibility using your appliance model number before ordering.

LG Washing Machine Water Level Pressure Sensor Switch (Part # 6501EA1001R)

Maintain precise water volume monitoring and protect your home from sudden tub overfills with this Genuine OEM LG Washer Water Level Pressure Sensor Switch Assembly. This factory-certified electrical safety module (Part # 6501EA1001R, which officially updates and replaces older variant configurations like 2651052, AP5204365, AH3529177, EA3529177, and PS3529177) serves as the primary diagnostic component regulating fluid management for your appliance.

Unlike primitive mechanical pressure diaphragms that clicked open and closed at fixed settings, this advanced electronic sensor utilizes an internal magnetic coil structure. It communicates fluid metrics to the main electronic control board by shifting its electronic frequency output relative to the ambient air pressure inside the attached vinyl tube. As water pours into the washing tub, the liquid column pushes upward into a small chamber at the base of the tub, compressing the air column trapped within the transparent air dome tube line. The rising air pressure pushes directly against the sensor’s flexible inner membrane, signaling the main computer module precisely when to cut power to the water inlet valve solenoids and safely initiate wash or spin cycles.

If this sensor fails, its internal magnetic circuit breaks down, or if hair and lint clog the air dome tube, the control board loses tracking of the actual water level inside the tub. This triggers immediate safety lockouts, leading to critical failure symptoms including a washing machine that stops mid-cycle and flashes the “PE” (Pressure Sensor Error) code, a machine that continuously drains its water out the drain line before a cycle can begin, or a tub that overflows completely by failing to turn off the water valves.

Quick Info:

• Compatibility: Precision engineered for modern LG and Kenmore (796-Series) front-loading and top-loading high-efficiency (HE) washing machines.

• Component Kit Details: Comes completely pre-packaged as a factory installation assembly including the circular electronic pressure switch transducer sensor and the clear flexible vinyl air dome pressure hose.

• Fixes Common Issues: Resolves “PE” digital display fault codes, complete failure to fill, a washer that constantly fills and drains simultaneously, or erratic, dangerously high or low water level selections during wash/rinse phases.

• Difficulty: Novice to Intermediate. A very accessible DIY repair typically requiring a Phillips screwdriver and a pair of pliers—accessible right beneath the main top lid cover plate.

⚠️ Critical Diagnosis & Visual Inspection Tip:

If your washing machine is displaying a “PE” error code, the electronic switch itself may be completely healthy. A pinhole leak or lint clog inside the clear vinyl air dome tube will mimic a dead sensor! > If the thin flexible hose rubs against the violently vibrating wash tub during high-speed spin cycles, the plastic can chafe and develop a microscopic air puncture. When water fills the tub, the air pressure leaks out through that hole rather than pushing up into the sensor. The sensor reads zero pressure, causing the board to think the tub is bone-dry, resulting in a dangerous continuous overfill.

Before unboxing your new part, pull the old clear hose out completely and inspect its entire length under a bright light for any tiny black wear spots, slits, or heavy lime-scale blockages at the bottom connection nipple!

Step-by-Step Replacement Guidelines:

1. Absolute Power Isolation: You must completely unplug the washing machine’s electrical power cord from the wall outlet or flip your home’s main dedicated circuit breaker switch to completely eliminate high-voltage electrical shock hazards before removing structural covers.

2. Remove the Top Main Cover Panel: Move to the back of the washer frame and unthread the two Phillips head retaining screws holding the rear lip of the top lid sheet-metal panel. Slide the top cover plate straight back an inch and lift it away to expose the upper wiring framework.

3. Locate the Pressure Switch Switch: On front-loading models, the sensor is mounted to the upper right-hand side frame rail support brace near the front control cluster. On top-load models, it is housed directly inside the rear control console panel housing assembly.

4. Disconnect the Harness and Hose: Depress the locking clip tab on the multi-wire plastic plug connector and slide it straight off the sensor pin housing. Use a pair of pliers to squeeze the small wire tension clamp on the vinyl hose nozzle, slide the clamp back, and twist the old hose firmly off the plastic sensor nipple extension. Unclip the bottom end of the hose from the plastic tub port funnel.

5. Mount the Replacement Assembly: Unclip the old switch from its snap-in plastic frame bracket. Snap your fresh new genuine factory replacement switch back into the housing brace. Slide your new clear vinyl hose directly into the routing path clips along the side wall, attach it tightly to the lower tub port nipple, and push the top end onto the sensor nozzle before sliding the retention wire clamps securely back down over the union joints.

Are you replacing this pressure switch today because your washing machine has stalled out completely and is flashing the “PE” error code on your display panel, or is your washer tub actively overflowing?