Quote:
There is a small momentary button on the panel

Are you referring to the door interlock mounted on the control box, or the actual jet pump button?
If you mean the door interlock, the door is supposed to be closed, and press the button closed... and the spa should work...
It's the only momentary switch on an old Hot springs, so I'm guessing that's it... the jet pump button is a latching switch....
Close the door.
If the door is in poor condition, it's ok to simply bypass the door interlock... Hot springs stopped using them in 1995, so I wouldn't go throught he trouble to repair or replace a part that isn't even being used anymore
Hope that helps
~Swine[/quote]