I had a similar problem and turns out that the board was sending 24v to both sides of the C1 coil. When I would test each side of the coil to ground I would get 24v so it wouldn't pull in obviously. There was an identical unit next to it, swapped boards and it worked out, ordered a new board, installed it and it runs like a top now.
"You better watch who you're calling a child Lois. Because if I'm a child then you know what that makes you? A pedophile, and I'll be damned if I'm gonna stand here and be lectured by a pervert."