I've had all four of my boards working at one time. I pulled them out today and one of the boards doesn't work. If i connect them to any of the other boards it stops them from working. When it gets connected the lights do flash so it gets power. I thought it was the resistors but i've double checked those. So i'm just kinda lost.
Oh and sorry if this is posted twice.

It sounds like your board may have a short-circuit somewhere-- perhaps an accidental connection between the +24 V and ground lines --or perhaps the op-amps on that board have been damaged. In either case, the shutdown that you are seeing is a safety feature of the power supply, reacting when the board requests to draw too much current.

I don't know what version of the kit you have, but if your chips are probably in sockets, and I'll assume this for the moment. Your next steps are as follows:
- Unplug the panels
- GENTLY and carefully remove the four chips from the non-working panel.
- reattach it (correctly) to the panel with jack & switch
- plug it back in and switch it on.

If the board with the switch and jack does still not work under these circumstances-- when the chipless board is plugged into it --then there really is a genuine short-circuit somewhere on the board. Unplug everything and give the board a thorough inspection to figure out where it's occurring.

If the board with the switch and jack *does* work when plugged into the chipless board, then the problem is in (at least one of) the chips. This is what happens when you plug in the boards with mismatched edge connectors-- the chips on that board can get fried. So, unplug everything, take a healthy chip from one of your other boards (or a spare if you have one) and put it in the socket in quadrant 1 of the bad board. If that repairs quadrant 1, then that confirms the diagnosis, and you probably need to replace all four chips on that board.