A little over two years ago I purchased a NAD C 355BEE to replace a pair of Dynaco ST120 amplifiers where one had died simply from old age (see post of 8-20-08). The NAD I would estimate now has less than 200 hours on it total. This past Thanksgiving I turned it on after it had been turned completely off (power strip turned off) for about two months and it worked fine and provided easy listening instrumental background music for about 6 hours and it was still working fine when I turned it off late Thursday afternoon. I turned it back on today, Saturday, to listen to Christmas music while decorating and it would not turn on. The power light remained amber when I pushed the power button on the front panel. I then tried turning it on using the remote and in that case it blinked red for a fraction of a second before turning back to amber. I also tried disconnecting the power to see if it might need a reset of some sort but that did not help.

It has two Dynaco A50 speakers connected to the “A” outputs and two more Dynaco A50 speakers connected to the “B” outputs and the wiring has not been touched since I originally put the NAD in service. Nothing has changed in over a year. It also has never been even the slightest bit abused. I am in my mid 60s and use it only occasionally and when I do listen to it, the audio level is set so a conversation can be easily carried on.

According to the directions it appears that the power light turns red from a speaker short, over heating, etc. but the directions also seem to indicate that it stays red until the condition is cleared. What I am seeing is red only for a fraction of a second and only when I try to turn it on with the remote.

Any idea what the problem might be and the cure? Thanks