Re: Ariston A1636 lights flashing, is it the PCB module?
Its a Hotpoint body with the dreadful Indesit electronics in it.
The PCB may well be faulty, they often are. However its wise to check out the pump, filter, pressure chamber, pressure hose, and pressure switch first.
The pressure switches do give problems but as this machine has the Hotpoint type sump hose and pressure chamber combined it would be advisable to make sure that is clear first.
Jim.