Have a 10 yr old Four Winds, KeyWest model spa, with a Balboa GS300 control board. Spa was working great until one day the pump just made a loud, constant hum.
Bought new AquaFlo 230v pump and installed. Bled air to ensure no airlock, but when powering up spa, pump does not start. Control panel shows no error, but during Priming period, pressing the jets button just make the relay click, but motor wont start. Power at pump is correct.