E18
IPSO Drain Level Sensor / Siphon Error

Washer displays E18; water level does not drop as expected during spin

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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

Drain hose installed too low causing siphoning, Blocked air trap/air dome, Faulty pressure switch not detecting empty tub, Partially blocked drain pump

How to Fix / Troubleshooting

Safety first: Unplug the washer before adjusting hoses or opening panels.

Steps to check and correct:

  • Check drain hose height: Ensure the drain hose is installed at the correct height specified by IPSO (typically 60–100 cm above floor). A hose that is too low can cause continuous siphoning and incorrect level readings.
  • Inspect air trap: Locate the air trap/air dome on the side or bottom of the tub where the pressure hose connects. Remove and clean any sludge or detergent buildup.
  • Clean pump and filter: Open the pump filter and remove debris. Check the pump impeller for partial blockage.
  • Test pressure switch: Verify that the switch correctly detects empty and full levels using a multimeter and gentle air pressure.
  • Re-test: After corrections, run a rinse and spin cycle. If E18 persists, replace the pressure switch and recheck installation.
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Repair Difficulty

Medium 3/5

Required Part

Air Trap / Air Dome Assembly
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