LG Washing Machine Water Level Pressure Switch Parts — Models & Compatibility

If your LG front-load washer keeps overfilling until water leaks out, or won't fill at all and just sits there empty, you're likely dealing with a faulty water level pressure switch. This hub covers the 6601ER1006G pressure switch that fits over 20 LG and Kenmore Elite washers from the WM series. This small but critical component tells your washer's control board when the drum has enough water — when it fails, you get either a flood or no wash cycle at all.

Is This the Right Part for Your Model?

Check your washer's model number (usually inside the door frame or on the back panel) against our compatibility list below. This switch replaces the older 6601ER1006E and 6600FA1704X versions, so if you're finding those part numbers in old service manuals, this is your updated replacement. LG kept the mounting bracket and air tube connection identical across these revisions.

About This Replacement Part

The pressure switch monitors water level through an air tube connected to the tub. As water fills, air pressure in the tube increases until it triggers the switch to signal "stop filling." When this switch sticks in the open position, your washer thinks it's always empty and keeps filling — that's how you end up with water on your laundry room floor. When it sticks closed, the control board thinks the tub is full from the start and won't even open the water valve. You'll see the timer counting down, but zero water coming in. Both symptoms point to the same $15 part that takes about 10 minutes to swap out once you pull the top panel off.

Common Failure Patterns

Water overfilling is the most dramatic symptom — you'll hear the washer filling normally, then it just keeps going past the normal level until water starts coming out the detergent dispenser or door seal. Won't fill is trickier to diagnose because it looks like a water valve problem at first, but if you manually advance the cycle and the drain pump works fine, it's usually this switch. The diaphragm inside wears out from thousands of cycles, or calcium deposits from hard water clog the air tube connection.

Compatible LG Washer Models

This 6601ER1006G pressure switch fits the following LG and Kenmore Elite front-load washing machines. If your model starts with WM, it's likely compatible — LG used this switch design across their entire front-load line from the mid-2000s through early 2010s:

• WM2077CW, WM2101HW, WM2233HU — early compact models
• WM2250CW, WM2277HW — mid-size standard depth
• WM2450HRA, WM2487HRM, WM2487WHM — 2007-2009 series
• WM2501HWA, WM2550HRCA, WM2550HWCA — 2008-2010 models
• WM2650HRA, WM2650HWA, WM2655HVA — large capacity versions
• WM2688HNM, WM2688HNMA — 2009 refresh
• WM2801HWA — single tub model
• WM3070HRA, WM3070HWA — 2010 generation
• WM3150HVC, WM3150HWC — compact stackable
• WM3431HS — steam model
• WM3470HVA — steam with allergiene

Plus dozens more in the WM series — check the full compatibility chart on the product page for Kenmore Elite models (typically starting with 796.xxx) that use LG-manufactured tubs.

What's Included

Just the pressure switch assembly with the mounting bracket. You'll reuse your existing air tube (the clear plastic hose running from the switch to the outer tub). If that tube is cracked or has gunk built up inside, now's the time to replace it separately — a clogged air tube causes the same symptoms as a bad switch.

Installation Overview

This is a straightforward swap once you access it. Unplug the washer, remove the top panel (usually two screws in back), and you'll see the switch mounted on the right side near the control board. Pull off the wire harness, disconnect the air tube, remove one or two screws, reverse the process with the new switch. The switch itself is pre-calibrated from the factory — there's no adjustment needed. Just make sure that air tube connection is snug or you'll get erratic fill levels.

Troubleshooting Before You Replace

Before ordering, blow through the air tube (disconnect it from the switch first) to make sure it's not clogged. You should feel slight resistance but air should pass through freely. If it's completely blocked, cleaning or replacing the tube might solve your problem without needing a new switch. Also check for visible cracks in the tube — even a tiny split will throw off the air pressure reading and cause fill problems.