E5 error appears when starting a pressure program; cooker does not build pressure and cancels the program.

Safety first: Unplug the cooker and ensure it is completely depressurized and cool before opening any covers.

Steps to diagnose:

• Remove the inner pot and inspect the pressure port area (usually under the lid or near the steam release). Ensure there is no dried food blocking the port.
• Turn the unit over and remove the bottom cover to access the internal components. Locate the small pressure sensor (often a small rectangular device with a silicone hose or direct port to the lid channel).
• Check that any silicone hose between the pressure port and sensor is firmly attached at both ends and not cracked or kinked.
• Inspect the electrical connector from the pressure sensor to the main control board. Reseat the connector.
• Clean any blockage in the pressure channel using a thin, non-metallic brush or pipe cleaner from the lid side (do not poke directly into the sensor).
• If E5 persists and you have access to replacement parts, replace the pressure sensor module or the main board assembly as specified for your Starfrit model.