Beefcake Posted October 14, 2010 Report Share Posted October 14, 2010 Hi all, first time poster, short time viewer... I recently got an older Sundance Cameo 600 from 1993-4. When I got it, it needed a new circuit board, new ozonator, and unfortunately, a new frame. I'm pretty handy, and I've replaced everything myself. Things seemed to be going great until I turned it on in it's final resting place (a concrete slab). I've put a lot of time and effort, but I am not sure what is happening here.... Now onto the problem. I filled up the tub using cold water from the hose and turned on the power. It showed 63 degrees and I put it in "standard" mode as per the manual and the water began to heat up. I estimated it would take about 6-7 hours to get to 100 degrees, so I set my alarm and got up at 2:30am when it was due to be at temp. When I got out there, the temp reading on the display panel was 112 degrees, so I grabbed my pool thermometer which looks to be good to 120 and it read only ~99 degrees. Also, I noticed the low speed pump was still on. The manual states the low speed pump should stay on for about 30 seconds after the heater shuts off and then turn off. The indicator light for the heater was off, while the "flow" and "standard" lights were on. All pumps/blowers were also set to be off. I also have the timer in the front which controls filter cycles all off. I am puzzled why the low speed pump is still on. My belief is that I didn't leave enough ventilation near the pumps and the heat from the low speed pump is causing the thermostat to have a reading that is higher that the actual water temp. The low speed pump is directly below the heater unit. Also, when I opened the control panel and took off the hot tub skirt material I had made (vinyl siding), there was definitely warm air coming out of the equipment area. It's around 50 degrees outside, so I'm not sure just how warm the area was. So, I shut off the power for the night and I'm going to take another temp first thing in the morning to see if the thermostat and my thermometer line up better. If they do, I'll remove the tub skirt and see if the added ventilation causes the problem to go away. Anyone have any better ideas about the high temps and even better why the low speed pump isn't turning off? The manual states the low speed pump will stay on after the heater shuts off to cool the heating element. I wonder if it has some "smarts". By this I mean instead of just kicking off a timer when the heater shuts off, it takes a temp reading and waits for the temp to go down a notch before turning off. Please help this noob.... Quote Link to comment Share on other sites More sharing options...
Spa_Guru Posted October 14, 2010 Report Share Posted October 14, 2010 Where is the temp sensor located? A fitting in the tub, exposed to water? On the heater? Quote Link to comment Share on other sites More sharing options...
Beefcake Posted October 15, 2010 Author Report Share Posted October 15, 2010 Where is the temp sensor located? A fitting in the tub, exposed to water? On the heater? The temp sensor is located in the filter compartment and is sundance part # 6600-167. My local shop thought is was the temp sensor once I figured out where is was. I swapped in a new one and now the digital display shows a temp which agrees with the pool thermometer I also have in there. Let's hope it was as simple as this....please!!!! Quote Link to comment Share on other sites More sharing options...
Beefcake Posted October 15, 2010 Author Report Share Posted October 15, 2010 Where is the temp sensor located? A fitting in the tub, exposed to water? On the heater? The temp sensor is located in the filter compartment and is sundance part # 6600-167. My local shop thought is was the temp sensor once I figured out where is was. I swapped in a new one and now the digital display shows a temp which agrees with the pool thermometer I also have in there. Let's hope it was as simple as this....please!!!! Ok, so I successfully changed out the temp sensor and it's initial reading aligned with my thermometer from the pool..96. So, I left it to heat up while I had the knob turned most of the way up on the dial. Came back about 2 hours later to find the display reading 107 and the heater off. It's an older tub (Sundance Cameo 600 from 1993-4) so I'm not sure if it should even be able to get this high. It started to rain heavily this point, so I shut off the breaker and put the cover on. I'll look more into it today when I get home from work. Quote Link to comment Share on other sites More sharing options...
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