I have a Jandy Jxi400 pool/spa heater. I turned it on yesterday for the first time in a couple of months and the water temperature read 95 degrees Fahrenheit, when it was actually around 75. After doing a little investigation, I'm wanting to point to the temperature sensor. I've found the part for around $70, so I would like to have some other opinions on the matter. I'm a fairly new pool owner. Thanks!