Display shows E02 and the unit will not brew or shuts down mid-cycle.

Safety first: Unplug the coffee maker and let it cool completely.

Basic reset and descale:

• After cooling, plug the unit back in and see if the error clears.
• If it persists, perform a full descale cycle to ensure accurate temperature sensing.

Inspect for obvious damage (advanced users):

• With the unit unplugged, carefully inspect the underside and around the warming plate for signs of overheating, burning, or melted plastic.
• If you see damage, discontinue use and seek professional service.

If E02 remains after descaling and reset, the thermistor or control board is likely defective and should be replaced by a qualified technician. Do not bypass temperature safety devices.