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Balboa Spa Controller Question


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#1 Davidny

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Posted 02 September 2008 - 07:50 PM

A friend was using my 2-year-old Santa Barbara hot tub 2 nights ago.

I noticed the temp was 104F while I was explaining the spa controls.

He accidentally put the Balboa into economy mode and closed up the spa.

When I went out today for a soak I saw the temp was 108F. The water had never before gone above 105F.

I put the Balboa back to standard mode and its OK now, but why would the h2o get so hot if it was in economy mode, which is supposed to only adjust the temp during occasional filter cycles? I would've thought the water, if anything, would end up cooler than the set temp.

The air temp was about 75-80F.

Any ideas?

#2 Pathfinder

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Posted 02 September 2008 - 08:04 PM

Check your actual spa temp with a manual thermometer to see if it is actually 108. If it is you may have a stuck relay for your heater on the circuit board. Do you have an M7 pack with the 2 temp probes on each end of the heater or do you have the older style were one sensor is under the heater tube and the other goes into a sleeve on the tub shell?
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#3 Davidny

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Posted 03 September 2008 - 07:45 PM

I put my hand in the water to verify (not very scientific but hey), and it was definitely hotter than usual.

I have the M7 pack with the two probes.

When I saw the high temp I checked the heat LED, it was off.

After I put it into standard mode the temp started decreasing.

#4 Davidny

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Posted 04 September 2008 - 06:27 PM

Well I went out to check on the spa and it had overheated (112F+)

Pesky economy mode.

#5 ps558

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Posted 05 September 2008 - 01:26 PM

QUOTE(Davidny @ Sep 4 2008, 10:27 PM) <{POST_SNAPBACK}>
Well I went out to check on the spa and it had overheated (112F+)

Pesky economy mode.



Check the filter cycles. It sounds to me that it is too long of a cycle and overheats the spas.

#6 Davidny

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Posted 06 September 2008 - 08:33 AM

QUOTE(ps558 @ Sep 5 2008, 05:26 PM) <{POST_SNAPBACK}>
Check the filter cycles. It sounds to me that it is too long of a cycle and overheats the spas.


That was it. Not only did my friend manage to get the spa into economy mode, he put it on an 8-hour filter cycle.

In case anyone finds this thread while having similar issues, here's the info for getting into those menus, which are way too easy to get into and change accidentally.

M7 Reference Card
http://www.h2oco.com...suv_m7_card.htm

Thanks!

#7 ChicagoMike

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Posted 07 September 2008 - 04:26 AM

So the heater has to be on while filtering?

#8 Davidny

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Posted 07 September 2008 - 05:09 PM

QUOTE(ChicagoMike @ Sep 7 2008, 08:26 AM) <{POST_SNAPBACK}>
So the heater has to be on while filtering?


The heater doesn't go on when the water temperature is 104F or higher.

The water pump creates heat as it moves water. For filtering, the pump is supposed to be on for two hours a day, which heats the spa shell with just enough heat to push the water temperature up by a degree or so. (This added heat is a pleasant side effect while people are in the tub enjoying the jets.)

When the pump is on for eight hours at a time it produces heat for a longer period, eventually overheating the water.

#9 ChicagoMike

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Posted 08 September 2008 - 03:44 AM

I really doubt the radiant heat from an electric motor could have that much effect on 400 gallons of water.

#10 r5ran

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Posted 08 September 2008 - 03:24 PM

You know, Mike, I thought the same thing....
But on my Vanguard, if you put your foot near the circulation pump outlet, not only do you see the ozone bubbles coming out, the water is hot!
At first I thought something was wrong and my heater was stuck on, even though the tub was maintaining temperature perfectly.
So I checked my electric meter and it was barely turning, then I cranked the temp up to turn on the heater, and yep, it started spinning like a top! So just running the circulation pump supplies that much heat. I dug through the H/S owners manual, and they even state that the circulation pump will supply heat and help limit the need for the 6k watt heater, even though it takes less than 40 watts to run the pump. In fact, in summer mode, the circulation pump turns off for 8 hour cycles, just to help keep the water cooler....
Surprising, and it seems like a very good concept, but it does seem to work...now I wonder how hot the water is coming out of the pump when the heater is on? I have not tried that intentionally yet,,,,but I will in my soak tonight! biggrin.gif

Thanks,
Randy

QUOTE(ChicagoMike @ Sep 8 2008, 06:44 AM) <{POST_SNAPBACK}>
I really doubt the radiant heat from an electric motor could have that much effect on 400 gallons of water.






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