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Oh yes, I forgot, as garrisonsmama mentioned, whereas a new controller board from an authorized Hayward distributor will run about $500, a limiter can be purchased online for a few bucks ($5?) and anyone who can use a soldering iron correctly can repair the board in just a few minutes! Mine was...

If you are sure that your inductor is not blown up (mine was cracked to pieces, not visibly burned in any way, it was less than two years old) there is also a 20 Amp (I think) automotive type mini fuse that may have blown. It is probably yellow, located somewhere on the main controller board...

I would just throw a few extra tsp. of chlorine in to bring your FC levels up a few PPM, then leave it turned on and walk away. Maybe turn your temperature down to save a little electricity. If the ozonator was going to consume the chlorine, then it was going to disappear eventually anyway on...

One other thing to check... clogged filters! When it cuts off, is it by chance indicating an "Heater High Temp Limit" error? My hot tub started shutting off after a water change, first every couple of weeks, then the period got shorter and shorter, until it would not stay on for two minutes...