When I bought the ES it had only a 2 year warranty; it changed to 5 years on the ES line shortly after I got it.

The good news is that after taking the cover off the receiver last night I found the two fuses between the AC line and power supply were blown. Hopefully they blew in time to protect everything downstream. Several other fuses on the power supply board were intact. The fuses are of a rather rare size, but I found a source and some are on the way.