daveb

I purchased a used 2002 Marquis Spa Coastal Series Euphoria tub. The previous owner got it with his house and mentioned he had replaced the heater sometime in the 7 years he owned it. Everything worked well the first day and the water got up to 104. When trying out the tub for the first time, it appeared to be in a cleaning cycle. The top side panel was not responding to button presses for the jets or light. It appeared I could change settings related to the cleaning cycle times, and being a hot tub newb, I assumed I had just timed things badly and needed to wait until the cycle was over. The pumps started going crazy basically powering on and off for a few seconds at a time. I still thought this was a cleaning cycle, but it was so intense I shut the tub down. The next day after work, I turned it back on. "Pr" (priming) would display on the panel, and I would hear a relay click. It started clicking on and off, timed just like a car signal (I took a video!). I removed the cover of my Balboa SUV1U panel and realized there was some moisture. It turns out the heater tube had a tiny pinhole and water was spraying into the electronics. I used JB marine weld to close up the pin hole (at least for now) and I was told these boards can be fairly resilient even when wet, so I used a blow dryer to dry things out. That did not work. Currently the same thing happens, with the "Pr" message, a single click of a relay, and nothing else. The light still will turn on and off, but pumps don't seem to attempt to engage. I obviously know that water did some damage to the board, but I am trying to find out if anyone can think of the most likely issue on the board itself. If there was a transformer issue, would the panel still work? Would I still be able to use the light? I have checked all the fuses for continuity. They all seem fine (2 pump fuses, and 2 other fuses) It really seems like the panel is trying to prime the pumps, but they haven't engaged at all, so it can't get past that mode. Would there be something on the board that engages the pumps? Any help would be greatly appreciated.