I was hopeful that this was the problem, but I tested and am getting 120v on each of the leads at the hot tub. Just for kicks I also replaced the 50 amp breaker in the main panel, too.
When I press the button for pump 1, pump 2, or the air pump, I hear something clicking on the main control board, but the pumps never fire up. I pulled the heater relay board out and while I couldn't do any actual testing on it, there are no burn marks anywhere on the front or back. This one has me stumped!
Jason