E04Serious
Speed Queen Washer E04 Error Code
Water level has exceeded the normal maximum and pressure switch detected overfill.
Common causes
- Faulty water inlet valve (stuck open)
- Blocked pressure switch hose
- Defective pressure switch
How to fix it
- Turn off water supply immediately to stop flooding.
- Check pressure hose for clogs.
- Test inlet valve for correct shutoff.
⚠ When to call a pro: If water continues to enter when machine is off, call a plumber or tech for valve replacement.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.