I HAVE A CALDERA SPA. OLYMPIA MODEL, HIGHLAND SERIES, S/N#OLH4B1043. PROBABLY BUILT SOMETIME 2004-2007. WE BOUGHT HOME WITH IT ALREADY INSTALLED BUT NO OWNERS MANUAL CAN I FIND. SPA HAS TWO BUTTONS ON SPA SIDE CONTROL AND A LED TO READ TEMP. ONE TO RAISE/LOWER TEMP AND ONE TO CONTROL LIGHT AND JETS. THE LED IS BLINKING BETWEEN THE LETTERS "EC" AND THE TEMP. I KNOW THE "EC" MEANS ECONOMY SETTING, BUT I CANNOT GET IT TO COME OFF THE "EC" SETTING. WHAT DO I DO?