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8 Trouble-shooting
…
F.. / E.. see instructions
/
FN XXXXX XXXXXX
appears
Possible cause Solution
▪ Various situations can
lead to a «F...» message.
▸ Cancel the error message by pressing the
button.
If the error message persists:
▸ Switch the power supply off for about 1
minute.
▸ Switch the power supply back on again.
▸ Cancel the error message by pressing the
button.
▸ Restart the programme.
▸ If the error appears again, note down the er-
ror message and FN number.
▸ Turn off the water tap and the power supply.
▸ Call Customer Services.
... in the display appears
U.. / E.. see instructions
Possible cause Solution
▪ Faulty electrical connec-
tion.
▪ Overvoltage.
▸ Cancel the error message by pressing the
button.
If the error message persists:
▸ Switch the power supply off for about 1
minute.
▸ Switch the power supply back on again.
▸ Cancel the error message by pressing the
button.
▸ Restart the programme.
▸ If the error appears again, note down the er-
ror message and FN number.
▸ Switch the power supply off.
▸ Have the electrical installation checked by
an expert.
53
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