JpSovereign Posted December 30, 2019 Report Share Posted December 30, 2019 I have problem where entire spa shuts down. No panel lights or function. No heat or ozonator. Only blinking blue panel illumination light (not signal lights). After overnight power down it came back up and seemed to work normally (verified panel, ozonator, and jets worked... didn't wait for heat) After draining and refill, it's back to same issue. Short power cycling of just a few minutes have no effect. Power is being received on both circuit boards. Thank you! Quote Link to comment Share on other sites More sharing options...
PreservedSwine Posted January 6, 2020 Report Share Posted January 6, 2020 Sounds like the high limit is tripping, or possible comm error. To determine which way to look- look for the "control unplugged" led on the main IQ2020, and see if it's lit. If so, it's not high limit related- try unplugging the multi-color light. If that doesn't do it, likely need either new PCB or control head. If "Control Unplugged" is not lit, then it's a tripping high limit- Check for good circ pump flow, check for dirty filter, and check the high limit thermistor Quote Link to comment Share on other sites More sharing options...
JpSovereign Posted January 6, 2020 Author Report Share Posted January 6, 2020 Thank you... it was in fact the circulator pump. I replaced the pump. All is good now thank you so much for your help! Quote Link to comment Share on other sites More sharing options...
JpSovereign Posted January 16, 2020 Author Report Share Posted January 16, 2020 Well after changing the circulator pump and both of the thermistors I was back in business and all was well for about 3 weeks now she's tripped again. Back in what appears to be that limit shut down state. Good grief! Cycled power a couple times... nada. Gonna open it up tomorrow for a look-see... Anyone have any ideas for what I should be looking for? Quote Link to comment Share on other sites More sharing options...
JpSovereign Posted January 17, 2020 Author Report Share Posted January 17, 2020 Well after changing the circulator pump and both of the thermistors I was back in business and all was well for about 3 weeks now she's tripped again. Back in what appears to be that limit shut down state. Good grief! Cycled power a couple times... nada. Gonna open it up tomorrow for a look-see... Anyone have any ideas for what I should be looking for? Update... after removing the plug for the LED lights and cycling power on I get the circulator pump running and the control unplugged light is now on but the heat light is not on. Quote Link to comment Share on other sites More sharing options...
Bearbottom Posted January 20, 2020 Report Share Posted January 20, 2020 Seems like to fix a Watkins. You need to just throw parts at it until it works. Im pretty stupid about these but it sounds like the control board. Quote Link to comment Share on other sites More sharing options...
fibercoug Posted January 20, 2020 Report Share Posted January 20, 2020 Try disconnecting the ozonator. Some of them emit excess EMI and affect the control board. I have had that happen to me. Quote Link to comment Share on other sites More sharing options...
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