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Jeepgirl721

Temperature / filtration cycle

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Hello. I have a South Seas Spa and we've always kept it on the Eco mode and set about 100-101 and the filter cycle set to 2. Just yesterday it started running filtration around the clock. The display reads 104 (the max temp) but I have it set on 99 (I have a pool thermometer in there and it reads about 100/101). So would a (false) reading of 104 make the filtration run 24/7? The "heat" light isn't on as it's running.  And what would make it have a reading of 104, when I don't think it actually that hot - a bad thermostat? My husband hast turned it off at the breaker twice , even letting it set over night and it continued to do the same thing today.

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What is the actual water temperature? When you turn on power does the pump immediately turn on or is there a delay?

Remove filters until issue is resolved.

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Is the tub in direct sunlight?  This time of the year my tub gets full sun exposure most all day long and it will get HOT in that tub (hottest I've seen is 105, but I also take the cover off for an hour before use to help bleed off some of that heat every night. 

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On 7/28/2020 at 5:31 AM, ratchett said:

Is the tub in direct sunlight?  This time of the year my tub gets full sun exposure most all day long and it will get HOT in that tub (hottest I've seen is 105, but I also take the cover off for an hour before use to help bleed off some of that heat every night. 

I can attest the above statement.  My heater is usually turned off in the summer, but the temperature will remain 100+.  It gets direct sunlight most of the day on the side the exposed plumbing is on.  I have sometimes had to dump ice in it to cool it off enough to get in.  This doesn't explain the constant pump running (which will also heat the water through friction).  I would suggest you have a bad relay on the circuit board for the pump (or the entire board is fried, which would explain the inaccurate temp reading).  Try giving it a tap to see if it resets and turns the pump off (though this may only be a temporary fix if the relay is sticking).  Take a good look at the circuit board looking for any signs of excess heat on the solder points.

 

John

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