Ok, I’m new here, but have had my easy touch system since 2007. I have a whisper flow variable speed pump and a mastertemp 400 Heater. Finally got around to repairing my heater leak at the manifold, replace new heater board, and the heater won’t activate. No board power. I jumpered the firemen switch and got power to the heater board. Spa on /off, pool on/off. No error code but “Service System” LCD on. Tracing back to the easy touch panel, 27 watts on the green and yellow wires at the heater power port port on the easy touch control panel board. Diagnostic error code was 146 initially, however I located loose connections on the J20 green and yellow wires and tightened the connections. Self diagnostic read error code 46 now. I heard all three relays trip during the diagnostic. Circuit breakers aren’t thrown. I checked all the screw connections on the board, and also checked the relay connections which were snug. With circuit breakers off I used my volt ohm meter on the coil legs of every relay and read 300 ohms. So at this point I’m at a loss. My guess is I have a bad chip on the board or a bad board. What else can I check to narrow this down? Your help is appreciated. Attached are photos.