Abstract: In order to prevent the formation of condensation in a cooling device for a current converter module, the cooling device has a cooling liquid channel, which conducts a liquid coolant and which is connected to a cooling circuit, a heat exchanger, which is connected in the cooling circuit and to which a power component is coupled in a thermally conductive manner, and a cooler for cooling the liquid coolant, which cooler is connected in the cooling circuit, wherein there is a heater in the cooling circuit such that the heat exchanger can be heated upon demand by heating the coolant.