I got this calspa hot tub from a friend a while back. When i got the tub something had malfunctoned , I called Cal spa and had a tech come out to look at it. He poked and proded around and came up with a bad circuit board and he replaced it. The tub worked great up untill fairly reciently when it quit heating. Every thing works well otherwise. Based apppon my discription and such can this fix be as simple as a new heting element? How likely is bad wiring to cause it to not heat. If you need model numbers and such i can get them tomorrow when i get up in the morning. Can a heating element be tested to see it its good? And last can i find a heating element on ebay? Any insight would be great. If you need pictures or any info please ask.