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I have a 2004 cal spa Atlantic model, it ahs the Balboa cs7000 control panal. I am having the "dry" warning come up more and more on the tub. I check the temps sensors the resistance seems the same, I am wordering if it could be the Safety suction sensors? I don't see much else on this model for sensors that could cause this error, looking for advise?
When you get the error code "dry" that is when the spa has had the error code "dr" for the third time and the spa will then shut down. That error code represents or is sensing inadequate water in the spa heater. Check the water level to make sure it is not too low in the spa. Then make sure you do not have an air lock in the spa pump causing the code. You can also try removing the spa filter and replace with a new one if the error code goes away while the old filter is removed.
I checked all the things mentioned, none helped, I went into the dealer, he sold me the two heat sensors and it fixed the message. I just wanted to post what worked for me,
Thank you for the information. It is always best to check other things first that can cause the problem before replacing parts if they are not needed. In your case one if not both spa sensors failed.