Panasonic Pressure System Fault (alternate code set, pressure models)

E4 error appears and the cooker will not start.

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.

Possible Causes

Blocked pressure valve, Faulty pressure sensor, Lid not locked, Damaged sealing gasket

Safety first: Confirm there is no pressure before opening. Unplug the unit.

Clean pressure components: Remove and clean the pressure regulator valve, anti-block shield, and steam vent.
Inspect gasket: Check the silicone lid gasket for damage and replace if deformed.
Check lid lock: Ensure the lid lock engages fully. Adjust or replace the lid lock assembly if needed.
Pressure sensor: If E4 persists, test and replace the pressure sensor module.

Hard 4/5

Pressure regulator valve

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