Hello I am new to the forum. I have a Cal Spa System 3000 which I believe is a '96 model. The tub came with the house when I bought it in 2011. So far I have replaced: jet/pump "2" (old one took a dump), the control panel with a new Balboa one, the wooden frame and skirt surround (old frame was rotten and falling apart), and multiple plumbing connections (old ones cracked and leaks ensued) and finally the tub cover. Old one got so bad and took on so much water I could barely lift it off. I have enjoyed the tub thus far. I realize that it is old and parts need replacing now and then.
My most recent problem is the tub was not heating up properly. I was getting a 'COOL' notice on the display. Also, twice I went to check on the tub and it was not running and 'OH' (overheat, according to the manual) was on display.
I opened the cover to the circuit board and found this:
Not sure what was going on here but according to the diagram on the back of the cover panel the copper lead that is burnt goes to the heater. I decided to monitor it for a day and then this happened:
Back of panel:
I was hoping someone could point me in the right direction as to what is going on and how to fix it. Any input is greatly appreciated! Thanks in advance.