Operating instructions

… Trouble-shooting
77
… appears
… appears
… appears
Possible cause Solution
䡲 The boiler in the appli-
ance is scaled up.
A Start descaling.
Possible cause Solution
䡲 Used unsuitable descaler. A Descale again using the recommended
descaler.
䡲 Descaling unsuccessful. A If the message does not disappear after re-
peating the descaling process several
times, note down the error message in full
(message, serial number (FN) and error
number (E)).
A Call Customer Services.
Possible cause Solution
䡲 Various situations can
lead to an error message.
A Cancel the error message by pressing the
button.
A Disconnect the power supply for about
1 minute.
A Reconnect the power supply.
A If the error message appears again, note
down the error message in full (message,
serial number (FN) and error number (E)).
A Disconnect the power supply.
A Call Customer Services.
Boiler scaled up,
please descale!
Appliance blocked,
descaling necessary
FX / EXX see instructions
FN XXX XXXXXX