On Sun, 3 May 2009 08:03:17 -0700, "William Sommerwerck"
wrote:

Now when first powered on after an overnight rest, it will shut off
immediately (stays on for maybe 5 seconds). After power cycling
the main switch (can't be done via remote -- must use the switch
on the back), it will run all day without problem.

That might very well be the defining symptom. What is the circuit difference
in the way the unit turns on and off via remote, and by flipping the switch?


One is a start up from a sleep mode, and the other is a hard power
switch.

This is a common sense prediction. You can bet that the remote operates
a relay though.