E4 appears when trying to use pressure cooking modes; unit aborts the program.

Safety: Ensure the cooker is completely depressurized and unplugged before servicing. Never attempt to open the lid under pressure.

• Clean steam release valve: Remove the steam release knob/valve from the lid. Clean all holes with a brush and warm soapy water. Ensure it moves freely.
• Check anti‑block shield: Inside the lid, remove the metal anti‑block shield (if fitted) and clean any food residue. A clogged shield can cause false overpressure readings.
• Inspect safety valve: Verify that the safety valve pin moves up and down freely and is not stuck with dried food or scale. Clean and descale if necessary.
• Examine pressure sensor tube: Some Gorenje models use a small silicone hose from the lid or top chamber to a pressure sensor on the PCB. Check that the hose is not kinked, blocked, or cracked. Replace if hardened or damaged.
• Check pressure sensor connector: Open the top cover and ensure the pressure sensor plug is firmly seated on the control board. Look for corrosion or moisture damage.
• Test operation: Reassemble, add water to the pot, and run a short pressure program. If E4 persists and mechanical parts are clean and moving freely, the pressure sensor or PCB is likely faulty and should be replaced.