Our home is still under home warranty. The spa is included in that. I had someone come by through the warranty company to inspect the spa as to why it continues to shut off/trip breaker. What led up to this is that the spot intermittently works. Of course when I use it or want to, the breaker will trip. I had originally diagnosed it as a pump versus heater, but low and behold today when we accessed the control panel I noticed that the heater terminals had corrosion. This was not evident about a month and a half ago when I disconnected the heater terminals and then the pump to determine if the heater was causing the short. Anyhow, please take a look at the pictures:
The heater is a Balboa 4 kilowatt 15 inch 2x2. Spa guy then said that what causes heaters to fail is water chemistry, more so having my pH out of whack. After meeting with him today, I YouTubed some info about heaters, and in one video, it stated that the most common cause of failures is water seepage getting onto the terminals and oxidizing them. I generally have been keeping my pH from 7.2 to 7.6 in the spa. Some more questions:
Can a low pH because this corrosion on the heater terminals?
Or, is the Spa guy just misinformed, like so many people I have come across in the Pool/Spa industry (not saying that I know everything at all)?
I take what this guy says with caution because he also said I shouldn't be using chlorine and bromine together because they could cause a rash.
Is the process of replacing the heater as simple as just disconnecting it, removing the heater and put a new one back in? Or, do I need to seal all the joints with silicone and do other stuff when I put it in?