sethmc84 Posted April 16, 2021 Report Share Posted April 16, 2021 Last week I started up a 2006 spa that was given to me. I have everything working, went out to check the next morning and the lights were blinking, circulation pump was off. When I lifted the cover, the water had leaked down to the lowest jet! I found and repaired the leak, the tub is now holding water, now the heater is not working. The circulation pump is working and the jets are working on clean mode, but nothing else. any suggestions? Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted April 16, 2021 Report Share Posted April 16, 2021 Are the indicator lights solid or blinking? Are there any lights on the circuit board? Do you have a multimeter? Test for voltage across the heater terminals on the circuit board. Some heaters have a built in high limit switch that must be manually reset. Check it for a small button or rubber plug over a hole in the plastic box on the heater. Post a picture of the circuit board and wiring diagram. Quote Link to comment Share on other sites More sharing options...
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