8
Problem
Probable cause
Solution
The coffee takes longer to
brew.
The coffee maker needs to be
descaled.
Descale the machine as described in
the section DESCALING.
The coffee has an acid
taste.
Insufficient rinsing after descaling.
Rinse the machine as described in the
section DESCALING.
TROUBLE-SHOOTING
DESCALING (available in select models
only)
If the water in your area is hard, lime scale depo-
sits may build up over time. These deposits may
affect the correct operation of the appliance.
When the ON/AUTO/OFF light flashes, you can
descale the machine using commercially available
descaling products for drip coffee makers. Follow
the instructions provided with these products. If you
are not able to find a descaling product, you can
follow the procedure below:
1. Pour 4 cups of water into the carafe.
2. Dissolve 2 spoonfuls (about 30 grams) of citric
acid (sold at drugstores) in the water.
3. Place the carafe on the warming plate.
4. Press the ON/AUTO/OFF button and let the
equivalent of one cup run through, then switch
off the machine.
5. Let the solution work for 15 minutes, then
repeat steps 4 and 5.
6. Switch the coffee maker back on and run the
solution through until the tank is completely
emptied.
7. Rinse by operating the machine with water
only for at least three cycles (3 full tanks of
water).
8. Once the descaling operation is finished, press
the SET TIMER and SET CLOCK buttons at the
same time to stop the ON/AUTO/OFF light
from flashing.
The warranty is not valid if the cleaning operation
described above is not carried out regularly.
Summary of Contents for DC312T
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