Nocturnal311 Posted June 4, 2014 Report Share Posted June 4, 2014 Hi all. I am new to owning a hot tub and new to the forum. I just picked up a used hot tub for almost free. It's a advanced spa design tub and I think it's from 1997. There was a couple of issues with it. I wasn't able to turn on the low speed jets, only the high speed was working. I looked at the control unit. There is no circuit board it's all contacts and switches. I also confirmed there was no thermostat. It is controlled by a timer or an auto dial. So I have a couple options: 1- put in a new spa pack with heater and control pad 2- try to add a thermostat( not sure if this even possible) 3- try to make it work like it is. I have a feeling it's going to use a lot of power What do you guys recommend?And if I were to get a new pack What kind do you recommend? I'm trying to save money if possible. I can do all the work myself, I am a certified electrician. Quote Link to comment Share on other sites More sharing options...
Dr. Spa Posted June 4, 2014 Report Share Posted June 4, 2014 There must be a thermostat in there somewhere. No spa has ever been built without one. Quote Link to comment Share on other sites More sharing options...
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