E5 error appears when trying to start a pressure program; cooker does not build pressure.

Safety first: Ensure the cooker is unplugged and fully depressurized before inspection.

• Clean steam release components: Remove and clean the steam release valve, anti-block shield, and float valve cap according to the user manual. Starch buildup can affect pressure sensing.
• Check float valve movement: Ensure the float valve moves freely up and down and is not stuck by dried food. Clean and reassemble.
• Inspect pressure sensor tube (if accessible): Some Sage multicookers have a small tube or channel from the lid to the pressure sensor. If accessible, ensure it is not blocked with residue.
• Reset the cooker: After cleaning, plug the unit back in and try a simple pressure program with adequate liquid.
• When to replace: If E5 persists, the pressure sensor module or its wiring is likely defective and should be replaced. This involves opening the lid or top housing and is best done by a technician.