Matsusho Rice Cooker Manual

: Too little water was used, or the lid was opened too early.

This usually indicates that the magnetic thermostat has sensed that the temperature has reached the boiling point too quickly—often because not enough water was used or because the inner pot is warped. Make sure you add the correct amount of water and that the bottom of the pot is clean and sits flat on the heating plate. Matsusho Rice Cooker Manual

Turn off the unit, unplug it, wait 5 minutes, then try again. If the error persists, search online using your exact model number (e.g., “MAT‑YR0601 error E:02”) or contact the place of purchase. : Too little water was used, or the lid was opened too early