Water softener softener (Optional)

In order to achieve good cleaning results, the washer-disinfector needs to operate with soft water. Hard water results in the build-up of calcium deposits on instruments, etc, and in the washer-disinfector.

Mains water with a hardness level higher than 0.7 mmol/l (4° d – German scale) needs to be softened. This takes place automatically in the integrated water softener.

The water softener requires reactivation salt.

The washer-disinfector must be programmed to correspond to the water hardness in your area.

Your local water authority will be able to advise you on the water hardness in your area.

The water softener is set ex-works for a hardness level of 3.4 mmol/l or 19°d.

If your water hardness differs from this (even if it is below 0.7 mmol/l or 4°d) you will need to programme the level into your machine.

Where the water hardness fluctuates e.g. between 1.4 - 3.1 mmol/l (8 - 17 °d German scale) always programme the washer-disinfector to the higher value (3.1 mmol/l in this example).

The built-in water softener has settings from 1 °d - 60 °d (0.2 - 10.8 mmol/l).

For future servicing it is useful to make a note of your water hardness level.

Enter your water hardness level here:

°d or mmol/l

Setting the water softener

When the machine is first commissioned the Miele service technician has to set the machine for your local water hardness level (see Programme manual, Operation/Reactivation).

Reactivation display

After a certain number of cycles the message REACTIVATION will appear in the display to warn you that the water softener is depleted and cannot supply any more softened water. As soon as the programme has finished reactivation salt will need to be replenished.

If this cannot be done immediately, and further cleaning cycles have been carried out, the reactivation process will need to be carried out twice in succession.

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Miele G 7823, G 7824 Water softener softener Optional, Setting the water softener, Reactivation display