(ET) E-15 Problem

[dkrafft bitstream net]

Hey everybody,
I have had a recent problem with my E-15 that I can't seem to figure out.
I have had the tractor for about 5 years and it has been trouble free,
(well aside from rolling it over once and breaking off a battery post, but
I won't call that the tractors fault). Lately it was not engaging
ocassionally when you turn on the main power switch. The switch was
working properly but the main gauge would not read any power and it would
not power up, but this was intermittant. It would suddenly power up when
you turned on the switch and work fine again till it happened once more. I
switched out the speed control thinking this might be it. The result was a
heavy clicking noise from the contactors whenever the speed control is
advanced but it does not engage. I had one pin (#2) that had slipped off
the #1 card but I replaced that, and replaced a pretty burnt up reverse
relay with a better looking one but that should not have had any effect on
the problem. Anybody got any other ideas?