25
User Manual WMF presto!
Software, Care
Descaling
The water hardness, the water flow, and whether a water
filter is used determine the schedule for descaling. This
point in time is calculated by the WMF presto! and
displayed.
Descaling is in three stages.
•
Preparation
•
Descaling
•
Rinsing
Do not drink the descaling solution that comes out of the
combi spout during descaling!
Use only WMF Descaling Agent. Any other descaling
product may cause damage to the coffee machine. No
liability is accepted for damage caused by the use of any
other descaling products and guarantee / warranty claims
are not entertained.
The following is needed for descaling:
•
2 bottles of WMF Liquid Descaling Agent (0.75 l each)
•
3 bottles of warm water (total 2.25 l)
•
5-litre collection container (for coffee machines
without plumbed waste water drain)
If the coffee machine is still hot a cooling routine initially
starts. The cooling routine takes 5 - 10 min.
Displays lead step by step through the program. Follow
the instructions.
Descaling with water tank or Aquaflex
Preparation
Remove water tank
Stir liquid descaling agent in water tank with warm
water
If crystals have formed when stored below the freezing
point, stir until all crystals present in the liquid
descaling agent have dissolved
Replace water tank filled with descaling solution
Place a container with approx. 5 litres capacity under
the hot water spout
descaling
Total duration of descaling approx.
80 minutes.
The procedure may not be
interrupted.
Caution.
Descaling agents are
irritants. Always follow
the instructions on the
package.
Observe the Safety chapter.
Caution.
Hot steam and hot
water.
Burn hazard.
Scalding hazard.
Observe the Safety chapter.
descaling
Crystals may form in the liquid
descaling agent when stored.
The crystals must not enter the
machine.
The ideal water temperature is
approx. 37 °C.
