So i understand the need for injection. Where to place the injections and how to size the wire to carry the load. The oart im still a little confused...
If you want, I can write the test sketch. Send me what you are using. Likely, you just lost a relay. You could easily reconfigure the sketch to use a...
Run a basic relay test. Make sure you are talking properly to all your relays. Take your existing sketch, rename it relay55test, take out everything...
Rust/corrosion is something I have run into this year . Many socketed parts are having issues across a range of controllers .
lcd displays a big one...
My advice: Yes do not try to get this working for this season, but do not stop working on the issue either. It takes a long time to get all of these...