The display shows E3 during heating or shortly after starting a pressure program; the cooker stops heating.

Safety: Unplug the unit and allow it to cool completely. Do not add water to a hot, dry pot.

• Check water and food level: Ensure there is sufficient liquid in the pot for the selected program. ProfiCook pressure programs typically require a minimum amount of water (at least 250–500 ml). Add water if needed.
• Clean the heating plate: Remove the inner pot. Wipe the heating plate and central sensor area with a damp cloth to remove burnt food or starch residue. Dry thoroughly.
• Inspect the inner pot: Check that the bottom of the inner pot is flat and not warped. A warped pot can cause poor contact and hot spots. Replace the inner pot if it rocks or does not sit flat.
• Reset thermal protection (if accessible): Some ProfiCook models feature a manual-reset thermostat on the base. With the unit unplugged and the bottom cover removed, look for a small, round thermostat with a red or black reset button. Press gently to reset if it has tripped.
• Test again: Reassemble the unit, add the proper amount of water, and run a short program. If E3 recurs quickly, the thermal fuse, thermostat, or control PCB may be faulty and should be tested and replaced by a qualified technician.