My Blue Pearl cleaners seems to have died so I either need a fix or a recommendation for what to replace her with for my 20 by 40 IG vinyl pool. When I push the green button on the power unit it lights up green while I hold it but the unit does nothing, when I let go the light goes off. I assume something has fried. Any ideas on a fix? If not, what make and model would you guys suggest I replace her with. Thanks.