temp keeps rising

[beth12345]

I have a Hawkeye Jupiter. I  am having a problem with the temperature. i am trying to keep it around 99 degrees. Last night is was 108! I lowered it, tonight it was 100, then a few hours later, 105. I have emailed the company, but no response. I am calling the dealer next, but hate to have to set up a visit, etc. Any ideas?
thanks.

[Pathfinder]

Sounds like you need to replace the pressure switch.

[Jacuzzi Jim]

 Pressure switches do not regulate temps,more than likely its a faulty temp sensor.  Not a hard fix,you might try shutting spa off for 10 min or so see if it resets, doubtfull but worth a try.