E12
Intex Flow Sensor Short / Open Circuit

Display shows E12 and pump will not continue running.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Broken flow sensor cable, Corroded sensor connector, Internal short in flow sensor, Damaged control board sensor input

How to Fix / Troubleshooting

Safety first: Unplug the pump before handling wiring or sensors.

  • Inspect cable: Follow the flow sensor cable from the sensor body to the control panel. Look for cuts, abrasions, or crushed sections.
  • Check connector: Disconnect and reconnect the sensor plug at the control board, ensuring a snug fit. Clean any corrosion with contact cleaner and allow to dry.
  • Continuity test (if you have a meter): With the sensor disconnected and pump unplugged, test continuity of the sensor leads. An open or shorted reading indicates a bad sensor.
  • Replace flow sensor: Install a new Intex flow sensor assembly if the cable or sensor is damaged.
  • Board check: If a known-good sensor still triggers E12, the control board's sensor input is likely damaged and the control panel PCB must be replaced.
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Repair Difficulty

Hard 4/5

Required Part

Flow Sensor Assembly
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