Symptoms
- Water spilling out of the top or door area
- Fill continues well past when it should stop
- Detergent still visibly filling in
- Problem started suddenly during a cycle
Likely causes
- CommonFailed water level sensor (pressure switch)This component tells the machine when to stop filling; if it fails, the machine may not sense the water has reached the right level.
- CommonStuck water inlet valveA valve that doesn't close fully continues to let water in even after the fill should have stopped.
- PossibleKinked or blocked pressure switch hose (top-load)A small air tube that senses water level can become blocked, giving a false low reading.
- Less commonControl board failure to send the stop-fill signalAn electronic fault can prevent the stop command from reaching the valve.
What to do
- Shut off the water supply valves behind the machine immediately to stop the overflow.
- Unplug the machine and clean up any spilled water promptly to prevent floor or subfloor damage.
- Check the small pressure switch air tube (if accessible) for kinks or water blockage.
- Do not turn the water supply back on until the cause is identified.
- If comfortable, inspect the water inlet valve for debris keeping it stuck open.
- Have a technician test the water level pressure switch and inlet valve before using the machine again.
Tools and parts
- Towels
- Wrench
Washer water level pressure switchSearch: “washing machine water level pressure switch”
Washing machine water inlet valveSearch: “washing machine water inlet valve”
When to call a pro
Have an appliance technician test the water level sensor and inlet valve before running the machine again after an overflow.
Safety
Use caution
Shut off the water supply right away to prevent water damage before doing any further troubleshooting.