KarenL67 Posted July 7, 2022 Report Share Posted July 7, 2022 We inherited this spa when we purchased the house. Was told it didn’t heat. Replaced the heater mechanism And a few leaks. Worked good now getting FLO error after it runs for 20 min or so. Jets work fine. Cleaned filter. Any other ideas ? Quote Link to comment Share on other sites More sharing options...
cranbiz Posted July 7, 2022 Report Share Posted July 7, 2022 Pull the filters and retry. If you still get a flow error, test the flow switch. You need a multimeter. When the tub is off, you should get an infinite ohms reading (no reading), with water flowing, you should get a 0 ohm reading. You should disconnect the switch from the board to test it. With most tubs, you can jump the switch terminals to replicate a working switch for test purposes. Quote Link to comment Share on other sites More sharing options...
KarenL67 Posted July 10, 2022 Author Report Share Posted July 10, 2022 Thank you. Ended up being a bad flow switch 1 Quote Link to comment Share on other sites More sharing options...
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