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James Carter MDSep 9, 2025
What does error E12 mean on my Waterway Power Defender 140?
- AAmanda HansonSep 9, 2025
If the Waterway Swimming Pool Pump displays the error code E 12 – UI Key Stuck, press the Start/Pause button to see if you can release it. If the fault continues to occur after verifying the wire connections, contact your pool professional or a qualified electrician for service.