Replaced PCB and getting some strange behavior

[dissfigured]

I am doing some trouble shooting because my system is starting to show its age.

Background:
Salt reading "very Low". I take the cell to Leslies and they say it tests fine.
Have a guy out and he says he can replace the PCB. The price is too high to I replace it myself.
I literally took 1 wire out of the old board and put it in the new board one by one and compared to a photo they are wired identically.

Now when I toggle, it only goes between pool and spa. It never goes to spillover.
Additionally, when I click heater, nothing happens.

Are those symptoms of anything that I can test or should I assume this is a bad board?

Thanks.

 

[Texas Splash]

Hello! I see you haven't received a reply yet on your post about your salt system. I just wanted to let you know we haven't forgotten about you. This reply should get your posting updated back to the top of the queue where hopefully someone experienced with your specific question can provide some constructive answers. Thanks for checking-in with TFP, and have a great day.