Miele CM 7500 - Faults with Automatic Descaling

Problem solving guide
93
Faults with automatic descaling
Problem Possible cause and remedy
Automatic descaling could
not be started. The machine
was not ready. See the
operating
instructionsappears
when the machine is
switched on.
If you have made drinks with milk, the milk pipework
must be pushed into the drip tray and when the
machine is switched off, the message about this in
the display confirmed with OK.
All removable parts, such as the water container, drip
tray, brew unit or central spout must be inserted at
the start time.
The machine door was not closed.
 Confirm the message with OK.
 Make sure that the coffee machine is ready to use
before the next descaling process.
The coffee machine was not switched off at the start
time using the On/Off sensor.
The coffee machine pipework will only be filled with
descaling solution when the coffee machine is
switched off.
 Confirm the message with OK.
 Change the start time if neccesary.
When the machine is
switched on, Automatic
descaling could not be
started. Start the automatic
descaling process (approx.
duration 4 hours) or switch
to manual descaling
appears in the display.
No drinks can be made.
Automatic descaling could not be carried out twice.
If you still want the coffee machine to descale
automatically:
 Make sure the coffee machine is ready for use (see
"Tips for automatic descaling").
 TouchOK to start automatic descaling.
If you want to make drinks straight away, and
therefore switch to manual descaling:
 Touch Manual.
The descaling process could
not be carried out. Replace
the cartridge with a new
oneappears when the
machine is switched on.
The descaling cartridge is depleted.
You can still make drinks on this day.
 Confirm the message with OK.
 Insert a new descaling cartridge (see "Miele
descaling cartridge").