In the service manual, F09 refers to the pressure switch (pressostat).
In fact, the causes may be all that can fool the control unit.
To fix F09, the unit must be inspected by someone who has the minimum knowledge of how the washing machines work.
Whoever claims this error must be willing to investigate and provide the required details.
F09 Error = Overflow Condition
If the Overflow contact on the pressure switch is Closed for more than 60 seconds
an Overflow condition will occur. In an Overflow condition, the Door will remain
locked, and the Drain Pump will run constantly, even if PAUSE/CANCEL is pressed
twice and the Display is cleared. Unplug the unit to service.
Potential Causes
ā¢ Check the drain hose and make sure it is not plugged or kinked
ā¢ Check Wire Harness connections to the Drain Pump, Pressure Switch, and
Central Control Unit (CCU)
ā¢ Check/ Clean Drain Pump Filter of foreign objects
ā¢ Check for Drain Pump Failure
ā¢ Check the Inlet Valve for proper shut off
ā¢ Check the Pressure switch for proper operation
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