A domestic refrigerator or freezer appliance, the domestic refrigerator or freezer comprising: a thermally insulated cooled zone; and a cooling system to cool said cooled zone, said cooling system comprising a mains powered compressor; an external mains power supply connection for an incoming mains power supply to said appliance; and a mains power supply cable (17, 25) to provide said incoming mains power supply; and a compressor control (19, 26) to control operation of said compressor, said compressor control including said mains power supply connection; wherein said mains power supply connection comprises a two-part, uncouplable electrical mains power supply connector (18, 21, 23), said two-part, uncouplable electrical mains supply connector having a first part (18, 23) connected to said mains power supply connection of said compressor control and a mating part connected to said mains power supply cable, such that said mains power supply cable is detachable from said domestic refrigerator by means of said electrical mains power supply connector. characterised by: a water-resistant cover (15, 24, 38) to cover said mains power supply connection of said compressor control to inhibit water ingress to said mains power supply connection from above, wherein said compressor control is mounted on said compressor, and wherein said mains power supply connection is co-located with said compressor control and beneath said cover, wherein said cover comprises first and second cover portions (15a,b) configured to mutually engage to fasten over said mains power supply connector to keep the parts of the connector together, and wherein one or both of said first and second cover portions is provided with a catch (16a,b) to enable said first and second cover portions to be disengaged on application of a disengagement force to said mains power supply cable, such that when said disengagement force is applied to the mains power supply cable the parts of the mains power supply connector separate or detach from one another rather than the compressor control being detached from the compressor. a thermally insulated cooled zone; and a cooling system to cool said cooled zone, said cooling system comprising a mains powered compressor; an external mains power supply connection for an incoming mains power supply to said appliance; and a mains power supply cable (17, 25) to provide said incoming mains power supply; and a compressor control (19, 26) to control operation of said compressor, said compressor control including said mains power supply connection; wherein said mains power supply connection comprises a two-part, uncouplable electrical mains power supply connector (18, 21, 23), said two-part, uncouplable electrical mains supply connector having a first part (18, 23) connected to said mains power supply connection of said compressor control and a mating part connected to said mains power supply cable, such that said mains power supply cable is detachable from said domestic refrigerator by means of said electrical mains power supply connector. a water-resistant cover (15, 24, 38) to cover said mains power supply connection of said compressor control to inhibit water ingress to said mains power supply connection from above, wherein said compressor control is mounted on said compressor, and wherein said mains power supply connection is co-located with said compressor control and beneath said cover, wherein said cover comprises first and second cover portions (15a,b) configured to mutually engage to fasten over said mains power supply connector to keep the parts of the connector together, and wherein one or both of said first and second cover portions is provided with a catch (16a,b) to enable said first and second cover portions to be disengaged on application of a disengagement force to said mains power supply cable, such that when said disengagement force is applied to the mains power supply cable the parts of the mains power supply connector separate or detach from one another rather than the compressor control being detached from the compressor.