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Showing results for tags 'FC'.
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Hi, I have an older hot tub that I bought used. I'm pretty sure it was made by combining parts from several. I want to run in the "F3" mode instead of the "FC" mode to save power by not running the pump continuously all the time, however when I put it in "F3" mode after some time (longer than an hour, less than a day) it throws the "OH" code and stops running until I reset it. To be clear, when it is in the "FC" continuous mode, it does not throw the code. So, my question is: Where do I start debugging? I've already replaced the limit switch recently for a different issue, so I don't think that's the issue. I can use a multimeter and solder if needed, but just wondering for likely culprits. http://imgur.com/a/BULJE Above are some pictures of the control panel.
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Hi, Been reading the forum a bit more now. The following question rose to my mind. Wouldn't testing these 4 parameters suffice (for my pool). My pool being plastic above ground, outdoors and no splashing, pH elevating fountains or such. CYA: test CYA to reach optimum level. pH: test the pH and correct pH with hydrochloric acid or sodium bicarbonate when necessary. FC: test FC and correct with bleach. TA: test and correct with sodium bicarbonate. The amounts of HCl, NaCO3, trichlor and bleach needed will be calculated with pool calculator. 'Correct' me if i'm wrong, Tim