Lg Top Load Washer Won T Stop Filling

Introduction

Having your LG top load washer continuously fill with water can be a frustrating and potentially damaging problem. It not only wastes water, leading to higher utility bills, but can also cause flooding and damage to your laundry room. This issue often arises unexpectedly during a wash cycle or even when the washer is supposed to be idle. Addressing this problem quickly is important to prevent further damage and unnecessary expense.

Common Causes of lg top load washer won t stop filling

Here are some typical reasons why your LG top load washer might not stop filling:

Faulty Water Inlet Valve: This valve controls the flow of water into the washer. If it’s stuck open, water will continue to flow regardless of the water level.
Pressure Switch Malfunction: The pressure switch senses the water level in the tub. If it’s defective, it might not signal the washer to stop filling.
Clogged or Kinked Drain Hose: A blocked drain hose can prevent the washer from draining, giving the impression it’s still filling.
Siphon Effect: If the drain hose is inserted too far into the drainpipe, it can create a siphon, continuously pulling water into the washer.
Faulty Water Level Sensor: Some models use a water level sensor instead of a pressure switch. A malfunctioning sensor won’t accurately report the water level.
Control Board Issues: In rare cases, the control board (the washer’s “brain”) might be sending incorrect signals, causing the valve to stay open.
Air Dome Obstruction: A small, often overlooked component, the air dome can become clogged, impacting pressure switch functionality.
Damaged or Disconnected Pressure Hose: This hose connects the pressure switch to the tub. A leak or disconnection will prevent the switch from working properly.

Symptoms Checklist

Use this checklist to confirm the issue:

The washer continues to fill with water even when it’s off.
The water level rises above the expected level during a cycle.
Water continues to flow into the washer even after it’s reached the “full” mark.
The washer overflows.
The washer doesn’t start washing because it’s overfilled.
You hear water running even when the washer is not in use.

How to Fix lg top load washer won t stop filling Step-by-Step Guide

Follow these steps to troubleshoot the issue:

Unplug the Washer: Safety first! Disconnect the washer from the power outlet.
Check the Drain Hose: Make sure the drain hose isn’t kinked, clogged, or inserted too far into the drainpipe. It should be no more than 6 inches deep. Try adjusting the hose.
Inspect the Water Inlet Hoses: Examine the hoses connected to the water supply for any kinks or blockages. Straighten them if necessary.
Turn Off Water Supply Valves: Locate the hot and cold water supply valves behind the washer and turn them off.
Clean the Water Inlet Valve Screens: Disconnect the water inlet hoses from the back of the washer. You’ll find small screens inside the inlet valve openings. Clean them with a small brush or toothbrush to remove any debris.
Check the Pressure Hose: Locate the pressure hose (a small rubber tube) that connects from the washer tub to the pressure switch. Ensure it’s securely connected at both ends and free of cracks or damage.
Locate the Air Dome and Clean: Find the air dome (usually a small chamber connected to the tub near the pressure hose). Carefully remove any debris or buildup inside it. You may need a small tool to reach inside.
Test the Pressure Switch (Visual Inspection): The pressure switch is often a round component with wires connected to it. Inspect it for any signs of damage or corrosion.
Check for Siphoning: Ensure the drain hose has an air gap (a space between the end of the hose and the drainpipe) to prevent siphoning. You may need to raise the drain hose higher than the water level in the tub.
Plug the Washer Back In: Reconnect the power cord to the outlet.
Turn on the Water Supply Valves: Open the hot and cold water supply valves.
Run a Test Cycle: Start a short wash cycle and observe if the washer fills correctly and stops at the appropriate water level.
Monitor for Leaks: As the washer fills, carefully check for any leaks around the water inlet valves, hoses, and pressure switch.
If the Problem Persists: Proceed to the “When Replacement Might Be Necessary” section.

Fix the Issue Without Buying Parts

Before considering replacement parts, try these free methods:

Reset the Washer: Unplug the washer for 5-10 minutes, then plug it back in. This can sometimes reset the control board.
Clean the Washer Tub: Mineral buildup inside the tub can affect the water level sensor. Run a cleaning cycle with a washing machine cleaner according to the manufacturer’s instructions.
Recalibration (If Applicable): Some LG models have a recalibration cycle (check your user manual). This helps the washer relearn the correct water levels.
Regular Maintenance: Periodically clean the lint filter, inspect hoses, and clean the washer tub to prevent future issues.

When Replacement Might Be Necessary

If the problem continues after trying the troubleshooting steps, the water inlet valve or pressure switch might be faulty and require replacement. A new water inlet valve typically costs between $30 and $70, while a pressure switch ranges from $20 to $50. The control board is a less common failure point but the most expensive, ranging from $100 to $300. Consider consulting a qualified appliance repair technician before replacing the control board.

Safety Warning

Always unplug the washer before performing any maintenance or repairs.
Turn off the water supply valves to prevent flooding.
Be careful when working with water and electricity to avoid electric shock.
If you’re not comfortable performing the repairs yourself, contact a qualified appliance repair technician.
Wear gloves to protect your hands from dirt and grime.

Tools You May Need

Screwdrivers (Phillips and flathead)
Pliers
Small brush or toothbrush
Bucket
Towels

FAQ

Here are some frequently asked questions:

Q: Why is my washer overfilling even when it’s turned off?
A: This usually indicates a faulty water inlet valve that’s stuck open.
Q: How do I know if the pressure switch is bad?
A: If the washer fills continuously and doesn’t stop, even after you’ve cleaned the air dome and checked the hose, the pressure switch is likely faulty.
Q: Can a clogged drain cause the washer to overfill?
A: Yes, a clogged drain can prevent the washer from draining properly, making it appear as if it’s overfilling.
Q: Where is the water inlet valve located?
A: The water inlet valve is typically located on the back of the washer, where the water supply hoses connect.
Q: How do I clean the water inlet valve screens?
A: Disconnect the water hoses, and carefully remove the small screens inside the valve openings. Clean them with a small brush and rinse with water.

Conclusion

Troubleshooting your LG top load washer’s filling problem can seem daunting, but with these steps, you can often resolve the issue yourself and save money on repair costs. Start with the simple checks and cleaning steps, and carefully proceed through the more involved troubleshooting. If you’re unable to resolve the problem or feel uncomfortable performing the repairs, don’t hesitate to contact a qualified appliance repair technician for assistance.