Please help me with my sundcance spa

[sundancespa]

Hello im new here and I have a sundance spa, sentry 800 from 1993.

Well when i turn on the breaker EVRYTHING turns on the jets and bubbles and only mode and the cycle button will work. You can not turn anything off. And after about 1 minute you see OH (over heated) appear on the screen and then everything shuts off and the control panal has 4 black lines going through it, and then nothing works.
I REALLY want to get this thing going on use it again. Any help is appreciated.

Thanks

[tony]

Hello im new here and I have a sundance spa, sentry 800 from 1993.

Well when i turn on the breaker EVRYTHING turns on the jets and bubbles and only mode and the cycle button will work. You can not turn anything off. And after about 1 minute you see OH (over heated) appear on the screen and then everything shuts off and the control panal has 4 black lines going through it, and then nothing works.
I REALLY want to get this thing going on use it again. Any help is appreciated.

Thanks

I'm not a tech, but from what I've seen it may either be a bad topside (main or auxiliary), temp sensor or control board.  I had something similar happen and the aux topside and temp sensor were replaced.