Installed it in about 45 minutes had my tub up and going again tech support was awsome

It works after a bit more effort. I like the design better than the original. Looks like they learned from the melted relays and foils of the original design, and built this rev to prevent that. My original board had the temperature sensors hard wired instead of using plugs, and connectors were not supplied. I had to improvise. Hind sight I probably should have called about the connectors, but I wasn't that patient. Wanted to get it working before it froze and I had a bigger mess. Also I wired it wrong initially. Followed the instructions supplied and had error messages and pump and heater didn't work. Downloaded other manuals from the website, and found explanation that it came setup for 120, and if you were using 240, to move jumpers. Then it started working fine and has for a week so far. I own some of the issues, but better documentation could have avoided them. Just happy it's working without having to replace the whole system.