ok, now it is clear to me, thanks.

So for my unit I could get the 2 button mode, since my unit is not equipped with a blower. That button is useless at the moment. Or would I need the three button model because I have three buttons now?

When you say adapter plate, what are you referring to?

Hi mchad21,
Correct, The controllers come in 2, 3, & 4 button configurations.
If you have an extra button, then thats all it is.

Tridelta Industries manufactured two different styles of controllers. The Two Button, and the larger Three, and Four Button.
When Technark bought them, they decided to only manufacture the 2 button size, and offer an adapter plate to accomodate the larger series 3, and 4 button.

http://spapartsnet.com/Reference-Catalo ... 3_0_1.html

ok, so I could just go with the two button version (light and jets) and I should be ok with the plate? Or do I need the plate regardless because I have three buttons now?

Thanks again for all the help.

plate regardless

well, all was fine for a couple weeks, but went out tonight to check and it was back it's old tricks.

Up around 109 at the 104 setpoint. And wouldn't turn off until I turned the dial all the way down and left it there for a few minutes.

It's now not reseting at the limit switch, but this is exactly what happened last time. If I come back in about 30 minutes I'm sure it will reset.

I'll be purchasing the new thermostat and adapter plate now..

Thanks everyone for all their help on this. If I run into trouble with the new install I'll hollar...but it looks pretty easy.

Thanks again.

so now I go out a day later, and hit the high limit switch. It depresses, which last night it would not do because maybe the temp was too high...?

Anyway, the heater will not click on. So maybe the unit is completely dead? Last time around, the heater clicked on after about an hour or so.

Thoughts?

nevermind, I checked it this morning and it clicked on.

Quick update

I just received the new controller, digital model. It has 5 round pins at the male connection; the female connection in my spa as 5 round pins plus 1 'hot' electrical prong.

Is this a problem? I haven't installed it yet and have a call into the vendor as well.

Thanks.