Washer Won't Stop Filling with Water

Quick answer

Turn off the water supply immediately to prevent flooding. Check the water inlet valve for clogs or damage, and ensure the float switch isn't stuck. If these don't resolve the issue, the pressure switch or control board may need replacement.

Confirm the symptom

• Washer continues to fill with water past the normal level
• Water runs continuously even after the washer starts agitating
• No error codes displayed but water won't stop
• Float switch appears to be stuck in the down position
• Washer fills but doesn't start the wash cycle

Tools and prep

• Screwdrivers (flathead and Phillips)
• Adjustable wrench
• Multimeter for testing electrical components
• Plumber's tape
• Replacement parts (valve, float switch, pressure switch)
• Turn off power at the circuit breaker
• Shut off the water supply to the washer

Step-by-step troubleshooting

1. Check Water Supply Valves
   Do: Ensure both hot and cold water valves behind the washer are fully open.
   Observe: Water flow should be unrestricted.
   Means: Valves are functioning properly.
   Next: If valves are open, proceed to step 2.
2. Inspect Inlet Valve Filter
   Do: Turn off the water supply. Remove the inlet valve filter screens and clean them with a brush.
   Observe: No visible debris or clogs in the filters.
   Means: Clogged filters were causing the issue.
   Next: Reinstall filters and restore water supply. If water still fills continuously, proceed to step 3.
3. Test Float Switch
   Do: Locate the float switch inside the washer drum. Gently lift the float to see if it moves freely.
   Observe: Float should move up and down without resistance.
   Means: Float switch is not stuck.
   Next: If float is stuck, clean or replace it. If it moves freely, proceed to step 4.
4. Check Pressure Switch
   Do: Inspect the pressure switch hose for kinks or blockages. Ensure the hose connects properly to the switch.
   Observe: Hose is clear and connected securely.
   Means: Pressure switch is receiving proper water pressure signals.
   Next: If hose is clear, proceed to step 5.
5. Test Inlet Valve with Multimeter
   Do: Set multimeter to continuity mode. Test the water inlet valve for continuity.
   Observe: Multimeter shows continuity when the valve should be open.
   Means: Inlet valve is working correctly.
   Next: If no continuity, replace the inlet valve. If continuity exists, proceed to step 6.
6. Inspect Control Board
   Do: Check the control board for visible damage or error codes. Use a multimeter to test for proper voltage.
   Observe: Control board shows no damage and receives proper voltage.
   Means: Control board is functioning correctly.
   Next: If control board is faulty, replace it. If everything checks out, consult a professional.

Common causes

Parts matching

Common replacement parts for a washer that won't stop filling with water include:

• Inlet Valve Filter
• Float Switch
• Pressure Switch
• Water Inlet Valve
• Pressure Hose

Purchase parts specific to your washer model for compatibility.

When to call a professional

• Water continues to fill after replacing all accessible parts
• You're unsure about testing electrical components like the control board
• The washer is under warranty and disassembly may void it
• Multiple components are faulty and require professional diagnosis
• You notice water leakage or flooding that you can't control

FAQ

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