Softub 300 temperature sensor

[Leigh]

The saga:

i have a softub 300. From the beginning, we had issues with the spa tripping the breaker. J took everything apart and realized that the temperature sensor on the bottom of the pvc pipe that pushes water out was loose. It looked as though there was an epoxy or caulking that wore away. I repaired it with two part epoxy( not a good idea) and then we realize the leaking had killed the impeller. Had the impeller and all seals fixed and replaced. Filled the tub, plugged it in and the jets and heater were working for about a minute. Then the plug tripped and o saw water coming from the bottom of the hydromate pack.

i took it all apart and sure enough, that little temperature sensor had been pushed out allowing water to spray from the pvc pipe.

ice purchased marine waterproof caulking, and set the sensor in the pvc pip, caulking all the way around and on the outside of the pipe. I’m allowing it Ron cure for 24 hours before we attempt to fill the tub again.

has anyone experienced this with a softub? I’ve looked everywhere to learn how I’m supposed to seal that sensor in but there is nothing. 

Hopefully someone can help since softub won’t say a word.

and yes- I’ve looked for a softub dealer or authorized serviceman and there are none for about 1000 kms of where I am

[revbradl]

I know this is a really old thread, but I wanted to chime in that I'm having a problem with the "Upper Limit Sensor" on my SofTub 300T.  I am disappointed that the company is so reluctant to allow owners to do their own repairs, instead, they want an exorbitant amount to fix it in one of their authorized service centers even when the item is clearly out of warranty.  The sensor I need is a three-wire sensor and shouldn't cost more than 50-75 dollars.  I just need a source to buy it from.