Setting The Water Hardness - Miele CVA 3660 Operating And Installation Instructions

Settings: Customising your machine

Setting the water hardness

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For trouble-free operation of the coffee machine, and to
ensure that the descaling reminder appears at the
appropriate time, it is important to programme the water
hardness. The water hardness level indicates how much
calcium is dissolved in the water. The higher the calcium
content, the harder the water, and the harder the water, the
more often the machine will need to be descaled.
The machine measures the amount of water which has been
taken in (including the amount required for producing steam).
The amount of water which the machine can use before it
needs to be descaled will depend on the water hardness
level set. Less water will be used in hard water areas than in
soft water areas.
Your local water authority will be able to tell you the hardness
of water in your area. Alternatively, you can measure the
hardness yourself using the enclosed test strip:
^ Dip the strip in your tap water for approximately 1 second,
then shake off any excess water.
The results will be evident after about 1 minute.
If the water is harder than 40 °d / 7.0 mmol/l, limescale will
build up more rapidy than with soft water. Descaling will
need to be carried out more regularly than stated to
prevent limescale damage to the machine.
Use the "Water hardness" option to programme in your water
hardness level.