dotdog2 Posted April 7, 2010 Report Share Posted April 7, 2010 Well, the topic says it all. I got home today and the green READY light on the front of the hot tub was blinking. Everything else works just fine. The manual says there is a problem with the temperature sensor. I manually measured the temp of the tub and it is at 115 degrees! Do I need to start by replacing the thermostat? I turned the breaker off for a few minutes like the manual said to and the light has stopped blinking. Is this the part I need? Control Thermistor 2003-Current & Some 20001-02 (Item #WAT39530h) Its $20 at poolsplus.com There is also a part called Hi-Limit Thermistor 2003-Current & Some 2001-02 (Item #WAT39525h) Its also $20. What do these two different parts do? Should I replace both? Does Watkins call a thermostat a Thermistor and what is the seperate Hi-limit part for? Strange. Thanks for the help. Jim Quote Link to comment Share on other sites More sharing options...
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