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Posted on Nov 11, 2008

Hot tub won't stay at set temperature

I set my 1999 infinity atlantis SE outdoor hot tub to 104 degrees. I was in it for 1.5 hours and the temp dropped to 100 degrees despite still having it set. Aren't they supposed to maintain the same temperature the entire time you use it?

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  • lgoose Nov 14, 2008

    I have only sat in it for 90 minutes at a time so I am uncertain if it would continue to drop, but at the rate it was , I would presume it would continue to drop. Now I how would I find out if I have a thermostat problem?

  • lgoose Nov 14, 2008

    I have only sat in it for 90 minutes at a time so I am uncertain if it would continue to drop, but at the rate it was , I would presume it would continue to drop. Now I how would I find out if I have a thermostat problem? Thank you.

  • bradm44 May 20, 2009

    hot tub heats up but once the temp reaches the setting it shuts off and doesnt come back on

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  • Posted on Dec 18, 2008
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I have a 2002 Infinity 6 man spa that I just got from a friend. I am also an Electrician. I had to replace the Spa pack because it wasn't working. Once I replaced the Spa Pack and used the tub it got up to temp no problem but once I got in the temperature slowly dropped and it couldn't keep up. After some research and discussion with a pool tech I found out that there is a jumper on some spa packs. It is a LC (low current) / HC (high current) jumper. It limits the current (amperage) that your tub draws. If you are running it on the LC setting it keeps the tub at low current by not running the heater when the jets are on. (this way it keeps the current low by running one only at a time) If you set it for HC it will allow high current to be drawn and let the heater and the jets be on at the same time. On my spa pack it is P26 Jumper. I have found it is also listed as Jumper 4 on some spa packs. the jumpers are located in the lower right of the circuit board. Make sure you shut off the power to the tub and know what you're doing before you attempt changes. you can also google "Gecko Spa Pack Service Manual" and you will find the manual for your tubs spa pack. Good luck.

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  • Posted on Nov 13, 2008
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This sounds like a thermostat problem. Does the temp continue to drop after a longer period of time? If not then it might just be a bit of lag time between the thermostat registering that the temp has dropped and heater, heating up the water.

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Or change dip switch settings and risk voiding warranty and causing service call expense.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html#temperature

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However the hotter setting caused error codes because the burner cannot keep up with both high temperature and large volume of hot water rushing through pipe. Especially in winter with cooler incoming water that must be heated more to reach temperature set point.
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If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

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