hbsurf Posted July 25, 2014 Report Share Posted July 25, 2014 I have a 2003 hot springs spa and the heater keeps shutting off within 2 minutes of turning the spa on. The circ pump is new and flowing good with a lot of bubbles so I am getting good flow through the heater. The filters are new too. The thermistors are a year old so I don't think it is those. I thought it might have been the heater relay board so I replaced that but that did not solve the problem. Any thoughts? Quote Link to comment Share on other sites More sharing options...
PreservedSwine Posted July 28, 2014 Report Share Posted July 28, 2014 Make sure you're not in summer mode. If the heater still turns off after a minute or two, unplug the aux control plug at the IQ2020 (looks like a phone Jack in the upper right hand corner of the IQ2020) Quote Link to comment Share on other sites More sharing options...
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