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Technical Support - A.D.L.
63/70
599 74 23-12 Rev.00
EH1
EH1: Mains frequency incorrect
EH1
Power supply frequency out of configured range
EH2
EH2: Supply voltage too high
EH2
Supply voltage value higher than the one configured (for more than 10 seconds)
Is the supply line disturbed or the mains
frequency out of range?
Replace the main circuit board and repeat the
diagnostic cycle to check for any further
alarms.
Have the electrical system of the home
checked / repaired by the proper Body.
Important
The appliance remains in alarm status until the mains frequency returns to the correct
values or the appliance is switched off (programme selector set to “0”). Only the family of
the alarm is displayed and the diagnostics mode cannot be accessed. The complete
alarm can only be read when the situation has normalised.
Is the supply line disturbed or the mains voltage
out of range?
Replace the main circuit board and repeat the
diagnostic cycle to check for any further
alarms.
Have the electrical system of the home
checked / repaired by the proper Body.
Important
The appliance remains in alarm status until the mains voltage returns to the correct values
or the appliance is switched off (programme selector set to “0”). Only the family of the
alarm is displayed and the diagnostics mode cannot be accessed. The complete alarm can
only be read when the situation has normalised.
Y
E
S
NO
NO
Y
E
S
Check that all the connectors are correctly inserted
!
Check that all the connectors are correctly inserted
!
!
If there are burns on the circuit board,
see page 68
!
If there are burns on the circuit board,
see page 68
!
!
!
!