KevinMik Posted April 4, 2014 Report Share Posted April 4, 2014 I have a hot tub that came with my house. It has a Spa Builders AP-1400 control (I think that's the correct word.) It has no problem turning on and getting hot from 60 up to 108. It'll turn off and then when the temp drops turn back on but instead of turning off it will heat until the breaker trips on the control. Any ideas what could be going on? I appreciate any help. Thanks. Quote Link to comment Share on other sites More sharing options...
KevinMik Posted April 6, 2014 Author Report Share Posted April 6, 2014 Any help from anyone? Quote Link to comment Share on other sites More sharing options...
Spa Board Doctor Posted April 26, 2014 Report Share Posted April 26, 2014 KevinMik, It sounds like a bad thermostat. The Spa Builders packs can also have a sticking/stuck heater relay (T-92 style relay) but I think the AP-1400 uses a double or single pole contactor relay which is less likely to stick closed. brandon@spokanespas.com Quote Link to comment Share on other sites More sharing options...
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