It’s a 2015 2016 gecko xe . This is the year they revised the boards . Going from 1 large capacitor down to 2 smaller ones . They are blown . That’s why on start up the spa pac keeps rebooting . They used a 50 cent cheap capacitor instead of a $1.50 one . Common problem with the year . Take board out and you will see the 2 capacitors clearly blown and bubbled up . Replace them and all good . I have 10 yrs experience running my hot tub service company and have replaced at least 35 of these capacitors from the year mentioned .