I had a Hayward heater installed with my pool about 8 yrs ago. Worked great for about 4-5 years, but every year since has required about a $300 repair. It's on the fritz again with a "bd" code, which looks like it's a bad control panel, but I just had the control panel replaced last year. Thinking about biting the bullet & just getting a new one, but I'm rather averse to going with Hayward again. Any thoughts or data on heaters that work reliably? I only use it to heat the spa 5-10 times a year. I suppose that adds to the annoyance that I use the heater so little, but it seems to be have been one of the costliest items on the pool...Thanks for your time.