26
Maintenance and cleaning
Time saving: when you clean the oven on a regular and
daily basis, then it will never get too dirty and the cleaning
process can be done in a jiffy.
9.2.7 Manually descaling the oven chamber
This chapter is mainly of use when you have an oven that
is equipped with a direct injection system. With these
ovens there may be a calcium residue (white) on your
oven chamber depending on the degree of your water.
This can be removed as follows:
Clean the oven as described in this manual.
Let the oven cool down to maximally 60° Celcius
Let the oven steam for 15 minutes at 60° Celcius
Then spray the oven chamber abundantly with Leventi
Ontkalker (decalcifier) and leave this for about 20
minutes to work.
TAKE CARE: ensure that you do not spray the door
sealing with de-scaler! This greatly prolongs the life of the
door sealing.
Then let the oven steam for 30 minutes at 100° Celcius
Clean the oven after the cleaning program by using a
handshower and or a moist cloth in order not to leave any
chemical residue behind. Also clean the door rubber!
9.3
Maintenance of the boiler
This chapter is only applicable when your oven has been
equipped with a boiler.
Flushing the boiler
The boiler will be automatically flushed when the oven is
turned on. The computer will decide itself if this is
necessary. The flushing cycle will only take a couple of
minutes. When the oven is too hot then it needs to cool
(the boiler) down first.
9.3.1 Decalcifying the boiler
Depending on the use and the degree of your water the
boiler needs to be decalcified. On average this needs to
be done once every two weeks (with a maximal water
degree of 3°dh). The oven will indicate when this needs to
be done.
The Mastermind will show the message that the boiler
needs to be decalcified.
The Digital showa the code B1
You decide when you want to decalcify the boiler
(preferably at the end of the working day in respect to the
time this process takes). But you should decalcify as soon
as possible.
Also applicable here: when you regularly decalcify your
oven then this will never happen as a surprise during
busy opening hours.
Starting up decalsifying of the boiler
With the Mastermind:
choose menu / cleaning / decalcify boiler
With the Digital:
Press simultaneously both
and
as indicated in the figure for 3 seconds
The oven will start up the decacifying programme.
The boiler will be flushed after a cooling down period.
The masterfy will notify this, the Digital shows the code
B1-4.
Then follow the instructions in the display. The oven will
ask you to insert the decalcifier in the boiler.
The Digital shows the code B2-4.
Poor the indicated amount of Leventi Ontkalker in the
opening on the right hand side of the oven. Use a funnel
to poor in the decalcifier.
Then press continue.
The Mastermind notifies that the process is running, the
Digital will show the code B3-4.
The decalcifying process takes approximately eight
hours. It is recommended to plan this in at the end of the
