Method for maintaining a plant for the production of containers from parisons made of plastic material, which comprises: - a blow moulding machine comprising a rotating carousel and a plurality of forming stations, each including a mould mounted on the carousel and able to adopt an open position to allow the introduction of a parison and the removal of a container, and a closed position to allow the forming of a container from the parison; - a primary drive means coupled to the carousel in order to drive the latter in cyclic rotation; - a transfer device (13, 14) which comprises a wheel provided with a plurality of gripping members, each one able, during rotation of the wheel to be placed at a transfer point where the gripping member is normally aligned with a mould in order to introduce a parison therein or remove a container therefrom; - a secondary drive means coupled to the wheel and synchronized with the primary drive means to drive the wheel in cyclic rotation synchronized with that of the carousel; - a control unit connected to the drive means (8, 18); this method being characterized in that it comprises the following steps: - detection of an error of alignment of the gripping members relative to the moulds; - immobilization of the carousel and the wheel; - desynchronization of the drive means (8, 18); - definition, in a reference system linked to the carousel, of a resynchronization region located between two moulds (M1, M2) which, during the immobilization, are located on either side of the transfer point; - partial, desynchronized rotation of the carousel and/or of the wheel until a gripping member is located in the resynchronization region; - resynchronization of the drive means (8, 18); - stepwise synchronized rotation of the carousel and of the wheel to permit removal of the parisons or of the containers from the moulds (M1, M2) adjacent to the transfer point; - desynchronization of the drive means (8, 18); - partial, desynchronized rotation of the carousel and/or of the wheel until the alignment between the gripping members and the moulds is reset; - resynchronization of the drive means (8, 18). - a blow moulding machine comprising a rotating carousel and a plurality of forming stations, each including a mould mounted on the carousel and able to adopt an open position to allow the introduction of a parison and the removal of a container, and a closed position to allow the forming of a container from the parison; - a primary drive means coupled to the carousel in order to drive the latter in cyclic rotation; - a transfer device (13, 14) which comprises a wheel provided with a plurality of gripping members, each one able, during rotation of the wheel to be placed at a transfer point where the gripping member is normally aligned with a mould in order to introduce a parison therein or remove a container therefrom; - a secondary drive means coupled to the wheel and synchronized with the primary drive means to drive the wheel in cyclic rotation synchronized with that of the carousel; - a control unit connected to the drive means (8, 18); - detection of an error of alignment of the gripping members relative to the moulds; - immobilization of the carousel and the wheel; - desynchronization of the drive means (8, 18); - definition, in a reference system linked to the carousel, of a resynchronization region located between two moulds (M1, M2) which, during the immobilization, are located on either side of the transfer point; - partial, desynchronized rotation of the carousel and/or of the wheel until a gripping member is located in the resynchronization region; - resynchronization of the drive means (8, 18); - stepwise synchronized rotation of the carousel and of the wheel to permit removal of the parisons or of the containers from the moulds (M1, M2) adjacent to the transfer point; - desynchronization of the drive means (8, 18); - partial, desynchronized rotation of the carousel and/or of the wheel until the alignment between the gripping members and the moulds is reset; - resynchronization of the drive means (8, 18).