Opened up the box, the caps all look good. Nice and flat on top and bottom. I am afraid that is a victim of the high humidity and salt air. All the electronics here have problems. One trick we do, is to hair dry circuit boards then spray with womens hair spray to coat and protect them. I live on the beach in Copacabana, a small price to pay for the life here!! The box had a good life but afraid it has just bit the dust. BTW, the external fan cage is pretty rusted, a sign of the salt air. I have had it here for 5 years. Take care, if ever in Rio, look me up.