sr200na

Hi all - At wits end here... have googled a bunch and am hoping for a new idea. SR200NA throwing an E01 code on startup. Powers up, runs through the start up cycle, the spa light comes on for .0001 seconds, then an audible "click" and the E01 code appears. Opened it up, cleaned out the mouse...

Was working last year but notice the service light active when turned on but cleared after running a while. Eventually replaced thermister and worked until end of pool season. Tried system in April and control board turns on and gives me R3 and then goes dark. Blower motor does not turn on. No...