9 Trouble-shooting
... in the display appears
U1 / E27 see instructions
FN XXXXX XXXXXX
Possible cause
Solution
•
Faulty electrical connection.
•
Overvoltage
►
Cancel the error message by pressing
the
button.
►
Switch off the power supply for about
1 minute.
►
Switch the power supply back on again
and select a new programme.
If the error appears again:
►
Switch the power supply off.
►
Have an electrician check the house in-
stallation.
If the error appears again:
►
note down the error message in full
and the serial number (FN) and then
disconnect the power supply.
►
Call Customer Services.
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