
To configure the water hardness on your Melitta AromaElegance Therm DeLuxe filter coffee machine, follow these steps. For the AromaElegance Therm model, begin by holding down the DECALC/HARDNESS button for more than two seconds; the red will then flash, with four flashes separated by pauses. Use the DECALC/HARDNESS button to cycle through the water hardness levels, indicated by one, two, or three flashes followed by pauses. Once you've selected your desired level, press and hold the DECALC/HARDNESS button again for over two seconds to save the setting. For the AromaElegance Therm DeLuxe model, hold down the DECALC/HARDNESS button while using the M button to set your preferred water hardness level, which will be displayed. Release the DECALC/HARDNESS button to save the setting once you're satisfied. Remember, water hardness adjustments cannot be made during the brewing process, and your chosen setting will be retained even after the power cable is disconnected. Properly setting the water hardness helps maintain your Melitta machine's performance and lifespan by preventing limescale buildup. For detailed information on water hardness levels and descaling procedures, consult your user manual.


