The Port Authority of Sifnos was informed by the 'Dionysios Solomos' operatiing on the scheduled service from Piraeus on the route Kythnos - Serifos - Sifnos - Milos - Serifos - Kythnos - Piraeus that the ferry, while berthed in Milos, suffered a malfunction of the cooling system of a generator on July 24, 2018. An inspector of the Milos Port Authority found a water loss from the electromechanical caps and from the turbine of the electric generator. The ship was detained until the damages have been rrepaired and a class maintenance certificate presented by the classification society. The 129 passengers of the ship were carried on aboard another ship.