poolguy101

Hi Eddiek2000, Yes, you have programmed your circulation pump to run 24 hours a day, however if the pump actually ran constantly, you would open your spa cover, and find the tub in "OH", or overheat, mode. The electronics in your spa are pre-programmed at the factory to cycle the circulation pump when the spa reaches its set temperature, to prevent overheating. This is built in, and cannot be overridden. If your spa is currently set at 102 Fahrenheit or lower, increasing the set temperature by 2 degrees Fahrenheit should cause the circulation pump to turn on. Cheers, PoolGuy101

Hello, I have a couple of questions for you, but should be able to help you out. First, what type of climate is the spa located in? Second, how are your filter cycles set? If the spa is in a warmer climate, having the spa run 24 hours per day can sometimes cause overheating, as the heat transferred from your circulation pump into the water will cause the temperature to climb. The rH Nf error is the spa pack telling you that it has detected a lack of water flow through the heater. You mentioned that you replaced the micron filter (pinkish purple, located in the middle of the skimmer). Did the errors appear before the filter was replaced? Did they go away for any period of time following the filter replacement? Is your source water "hard" or "soft"? Well water can sometimes cause the micron filters to clog very prematurely, in which case a blue pleated filter can be used instead of the micron filter. Water filtration is slightly less, but if your water chemistry is good, you should see little to no difference. Is the spa set to "Economy" mode or "Standard" mode? If set to Economy, the water temperature can drop up to 20 degrees F when the spa is not in use, depending on how your filter cycles are set. The In.XM boxes are designed to be completely waterproof, however the water falling on it could have caused an issue if all of the cables were not completely seated properly. It is possible for there to be an issue with the new heater as well. All of the temperature and flow sensors are contained within the heater itself, and the only way to determine if the heater is the cause, after checking all other possible issues first, would be to try a new heater and see if the problem goes away. Lastly, the spa pack itself can be "retaught" the readings it should be looking for. If none of the above works, let me know and I can guide you through the relearning process. It will require removing the skirt panel to access the spa pack behind it, and takes about 5 minutes to do.

I have a similar situation. The pad (bought house last Dec, old Caldera tub just removed, my tub now in place) seems to be about an inch off...one side of the tub is about an inch (maybe a bit more) lower than the other on the water line. How does one "spot level" as you refer to it? I thought about making a form out of wood, which was properly leveled. Then pouring concrete right on top of the current concrete pad so that it is an inch thick on one end, tapering down to nothing on the other. Would this work? Or would it just "crack up" under the duress of weight and weather? Is there mortar or leveller material I could use? David Check with the manufacturer before you do anything. Some will void your warranty if you shim or attempt to level out the tub by any other means than ensuring the entire base it sits on is flat and level.

I'd check with the manufacturer first. Some will void the warranty on the tub if it is put on anything other than a flat surface. Not even shims can be used for some.

I, too, am a big fan of leaving the tub set to your desired temp 24/7. The tub should use less electricity to maintain it's set temperature than you blasting the heat to get it where you want it every time you use it. Judging by how well your tub appears to be inulated, anyways. Those slats are there so that the pump motors don't overheat. Of course it is going to cost you a bit more to run the tub in the winter. No way around that, other than to put it indoors.

The best thing you can do for your tub is to place it directly on a concrete slab. Concrete costs more than some of the other things out there that can be used for a base to a tub, but it lasts the longest, and works the best, IF done properly.

It sounds to me like you have a bad control panel. Because the tub is still heating and circulating properly, it sounds like the new circuit board is still working properly. I would go with a new control panel. I can't recommend adding any type of jumper or toggle switch to the tub, as it will most definitely alter the tub's ability to filter and function properly. If it was an older spa that used air switches and relays, yes, but then you wouldn't be having the issues you are right now if it were. Calling a tech to look at your tub may be worth while, if you haven't already. You may be able to find one that, if they are an authorized repair centre for Sundance, has an older topside, or at least one that will work in your tub for testing purposes, to see if that is in fact the issue.

Stay as FAR AWAY from Canspa AND Direct Buy as possible. I've worked on Canspa first hand, and the headaches I could tell you about.....

It sounds very much like it is the control panel. It could also be the circuit board, but that is not likely based on the description of what the tub is doing.

The wood is, in fact, pressure treated with Borates. Borates are naturally occurring mineral salts that are essential to growing plants and nutritionally important to a healthy human ***. While borates are harmless to humans, they are toxic to insects. Borates have been used to control insects—including the destructive Formosan termite, standard termites, carpenter ants, and roaches—in homes for years. Borates interfere with insects’ metabolic systems and effectively kill them. They also protect against rot and fungi. In some applications, borates even act as a fire retardant. Borate products have been used safely for more than 100 years. In fact, borates can be found throughout your own home in a vast array of common products and materials. They are safe for pets and the environment, and they require no special handling or disposal. We eat borates everyday. Borates do not build up in our bodies; our bodies handle borates just like any other nutrient, whether they’re ingested or inhaled. I think the reasons for Borates being used as opposed to chemically pressure treated wood may have something to do with the fact that Sundance builds their spas in California, and they have to adhere to different regulations in regards to the use of various chemicals.