After about 4-5 phone calls over the 3 weeks since we got back to TV from the north, SECO came out today and replaced the transformer in the back yard, making 4 families very happy!!!
We had the same issue as SaFred described...a loud hum which could drive you crazy...not to mention safety and health concerns with a heavy load piece of equipment.
SECO was very good about it..no argument or long winded discussions required. Worker today indicated that the particular brand of transformer has been an issue for them.