Error Code E12
The same code can mean different things per brand and appliance. 2 matches on file.
Bosch Dishwasher
There is limescale build-up in the heat pump. On a Bosch Dishwasher, code E12 points to the sensor.
United States Degraded
LG Washing Machine
The FE/E04/E12 error indicates a problem with water overfilling. On a LG Washing Machine, code E12 points to the inlet valve.
United States Degraded