E4
Severin
Lid temperature sensor (upper NTC) fault
E4 error appears when trying to start a pressure program
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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
Loose lid sensor connector in hinge area, Broken lid sensor cable from frequent opening/closing, Failed lid NTC sensor, Damaged lid harness where it passes through hinge
How to Fix / Troubleshooting
Safety first: Disconnect power. Ensure the cooker is depressurized and cool before working near the lid.
- Inspect lid cable: Open the lid and look at the cable running through the hinge or side channel. Check for cuts, kinks, or exposed conductors. Replace the harness if damaged.
- Check connectors: Remove the top cover (screws under trim or handle) to access the lid sensor connector. Reseat the connector firmly on the control board.
- Measure sensor: With a multimeter, measure resistance across the lid NTC. Compare to the bottom NTC at room temperature; they should be in a similar range. Infinite or zero resistance indicates a bad sensor.
- Secure routing: When reassembling, ensure the cable is routed so it does not get pinched by the hinge movement.
Warning: Do not pull strongly on the lid cable; this can break internal conductors and worsen the fault.
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Repair Difficulty
Hard
4/5
Required Part
Lid NTC Temperature Sensor
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