Susanj Posted July 8, 2017 Report Share Posted July 8, 2017 Our hot tub is barely over a year old. We set the temp at 102 but when we go to it , it is 104.. Is the thermostat already going? Even with a good cover, does the summer sun affect it? Quote Link to comment Share on other sites More sharing options...
danthespaman316 Posted July 9, 2017 Report Share Posted July 9, 2017 Your tub is probably running as it should. Tubs can't cool themselves so if it's hot outside, it will eventually cause the temp to rise in your tub. Drain some water out and replace it with cold from your hose until you get under 100 and see if it starts to heat. If the unit shuts down after getting back to 102 it's fine. Good luck. Quote Link to comment Share on other sites More sharing options...
Jersey Hot Tub Repair Posted July 10, 2017 Report Share Posted July 10, 2017 How do you know the tub is 104 and not 102? Are you using an accurate thermometer or just going by the control panel? Temp sensors are fairly accurate, but +/1 one degree is not a problem. Changing the temp sensor may or may not make it more accurate. Summer sun and heat can definitely cause the tub to heat. If you have a blower (bubbler), run it in the evening when the air temperature drops, it should cool the water a bit. Dave Quote Link to comment Share on other sites More sharing options...
Susanj Posted July 10, 2017 Author Report Share Posted July 10, 2017 I was just going by the control panel . Quote Link to comment Share on other sites More sharing options...
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