I wouldn't be able to fix it due to a lack of parts to make such a repair, if all that was wrong was a break in the connection of the female receptacle to the board, that I might be able to repair. The upgrade is a new 6215.200 pump, 6215.300 sponge and 6105.240 power supply, unfortunately this costs almost as much as just buying a new 6214 wave box which is probably a better option.