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Have a 1500 gallon Barefoot Vetis swim spa with Balboa EL 8000 controller. A few days ago I went out and the spa was at 80 degress when it was set to 100 degress. I replaced the filters and reset the power to the tub. It worked it's way back up to 100 degress. A couple days later it had an alternating "SERVICE REQD" / "HTR TEMP LMT" message on the screen. I pressed a button and it showed the temp and began running the ozone and showed the temp as 92. I checked on it later and it said "SERVICE REQD" / "SENSOR SYNC".

I turned off the power and took a look at the inside of the controller. One of the fuses looked weathered, so I replaced it and started everything back up. Same issue :(

Is this a bad sensor, bad heater, bad pump/flow issue, or something else?

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21 hours ago, sweeperq said:

this a bad sensor, bad heater, bad pump/flow issue, or something else?

Yes! Exactly!🤣

Sorry, couldn't pass it up...

Seriously though, it could be any but a bad heater. Let's narrow it down a bit. 

21 hours ago, sweeperq said:

. I replaced the filters

With new filters? Not freshly cleaned, but new? If not, remove filters and see what it does.

Does this system use a dedicated circ pump or the two speed pump for heating?

Do you have a multimeter?

Post pics of the circuit board, wiring diagram, and equipment area so we can see what you've got in there.


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We inherited the spa when we purchased the home last year, so I will try to answer the questions as best possible.

1) Filters were cleaned. Tomorrow I will try removing them to see if it impacts the flow. 

2) Not sure. There are several pumps due to it being a swim spa. How would I be able to tell.

3) Yes, I have a multimeter.

4) I don't have a wiring diagram, but have posted some photos of the controller board, heating element, and display.






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I turned off power to the spa last night because there was a new "HEATER DRY" message. I removed the filters as you suggested, and restored power with all of the covers off to see if I could determine if a pump was not working. After priming, this time the display showed the temp  and allowed me to start the jets.

The suction on the skimmers seemed normal. Is it possible that the suction is there but the filters may still need to be replaced?





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On 11/12/2021 at 8:32 PM, sweeperq said:

I think even though the filters were white and looked clean that they were caked with Calcium and/or other mineral deposits restricting flow. Since replacing the cartridges with brand new ones I haven't had any additional fault codes appear.

Exactly. Glad it's working for you now. 👍

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